function write($_POST)
{
    extract($_POST);
    $deptid += 0;
    db_conn('cubit');
    if (isset($printsales)) {
        $Sl = "SELECT * FROM settings WHERE constant='PSALES'";
        $Ri = db_exec($Sl) or errDie("Unable to get settings.");
        if (pg_num_rows($Ri) < 1) {
            $Sl = "INSERT INTO settings (constant,value,div) VALUES ('PSALES','Yes','" . USER_DIV . "')";
            $Ri = db_exec($Sl);
        } else {
            $Sl = "UPDATE settings SET value='Yes' WHERE constant='PSALES' AND div='" . USER_DIV . "'";
            $Ri = db_exec($Sl);
        }
    } else {
        $Sl = "UPDATE settings SET value='No' WHERE constant='PSALES' AND div='" . USER_DIV . "'";
        $Ri = db_exec($Sl);
    }
    //$it+=0;
    # validate input
    require_lib("validate");
    $v = new validate();
    if (isset($client)) {
        $v->isOk($client, "string", 0, 20, "Invalid Customer.");
    } else {
        $client = "";
    }
    if (isset($vatnum)) {
        $v->isOk($vatnum, "string", 0, 30, "Invalid VAT Number.");
    } else {
        $vatnum = "";
    }
    if (isset($branch_addr)) {
        $v->isOk($branch_addr, "num", 1, 20, "Invalid site address.");
    } else {
        $branch_addr = 0;
    }
    $v->isOk($invid, "num", 1, 20, "Invalid Invoice Number.");
    $v->isOk($telno, "string", 0, 20, "Invalid Customer Telephone Number.");
    $v->isOk($cordno, "string", 0, 20, "Invalid Customer Order Number.");
    //$v->isOk ($comm, "string", 0, 255, "Invalid Comments.");
    $v->isOk($ordno, "string", 0, 20, "Invalid sales order number.");
    // 	$v->isOk ($chrgvat, "string", 1, 4, "Invalid charge vat option.");
    $v->isOk($salespid, "string", 1, 255, "Invalid sales person.");
    $v->isOk($pinv_day, "num", 1, 2, "Invalid Invoice Date day.");
    $v->isOk($pinv_month, "num", 1, 2, "Invalid Invoice Date month.");
    $v->isOk($pinv_year, "num", 1, 5, "Invalid Invoice Date year.");
    $odate = $pinv_year . "-" . $pinv_month . "-" . $pinv_day;
    if (!checkdate($pinv_month, $pinv_day, $pinv_year)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($traddisc, "float", 0, 20, "Invalid Trade Discount.");
    if ($traddisc > 100) {
        $v->isOk($traddisc, "float", 0, 0, "Error : Trade Discount cannot be more than 100 %.");
    }
    $v->isOk($delchrg, "float", 0, 20, "Invalid Delivery Charge.");
    $v->isOk($subtot, "float", 0, 20, "Invalid subtotal.");
    $odate = $pinv_year . "-" . $pinv_month . "-" . $pinv_day;
    if (!checkdate($pinv_month, $pinv_day, $pinv_year)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($collection, "string", 0, 40, "Invalid collection method.");
    # used to generate errors
    $error = "asa@";
    # check if duplicate serial number selected, remove blanks
    if (isset($sernos)) {
        if (!ext_isUnique(ext_remBlnk($sernos))) {
            $v->isOk($error, "num", 0, 0, "Error : Serial Numbers must be unique per line item.");
        }
    }
    # check is serial no was selected
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            # check if serial is selected
            if (ext_isSerial("stock", "stkid", $stkid) && !isset($sernos[$keys])) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            } elseif (ext_isSerial("stock", "stkid", $stkid) && !(strlen($sernos[$keys]) > 0)) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check quantities
    if (isset($qtys)) {
        foreach ($qtys as $keys => $qty) {
            $discp[$keys] += 0;
            $disc[$keys] += 0;
            $v->isOk($qty, "num", 1, 10, "Invalid Quantity for product number : <b>" . ($keys + 1) . "</b>");
            if ($qty < 1) {
                $v->isOk($qty, "num", 0, 0, "Error : Item Quantity must be at least one. Product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check whids
    if (isset($whids)) {
        foreach ($whids as $keys => $whid) {
            $v->isOk($whid, "num", 1, 10, "Invalid Store number, please enter all details.");
        }
    }
    $cusnum += 0;
    # check stkids
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            $v->isOk($stkid, "num", 1, 10, "Invalid Stock number, please enter all details.");
        }
    }
    # check amt
    if (isset($amt)) {
        foreach ($amt as $keys => $amount) {
            $v->isOk($amount, "float", 1, 20, "Invalid Amount, please enter all details.");
        }
    }
    if (isset($des)) {
        $des = remval($des);
    }
    if (isset($asset_id) && is_numeric($asset_id)) {
        foreach ($asset_id as $value) {
            $sql = "SELECT id, des FROM cubit.assets WHERE id='{$asset_id}'";
            $asset_rslt = db_exec($sql) or errDie("Unable to retrieve asset.");
            $asset_data = pg_fetch_array($asset_rslt);
            if (isHired($asset_id)) {
                $v->addError(0, "Asset " . getSerial($asset_id) . " {$asset_data['des']} has already been hired out.");
            }
        }
    }
    # display errors, if any
    $err = "";
    if ($v->isError()) {
        $errors = $v->getErrors();
        foreach ($errors as $e) {
            $err .= "<li class='err'>{$e['msg']}<li>";
        }
        return details($_POST, $err);
    }
    if (strlen($vatnum) < 1) {
        $vatnum = "";
    }
    $_POST['client'] = $client;
    $_POST['vatnum'] = $vatnum;
    $_POST['telno'] = $telno;
    $_POST['cordno'] = $cordno;
    # Get invoice info
    db_connect();
    $sql = "SELECT * FROM hire.hire_invoices WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $invRslt = db_exec($sql) or errDie("Unable to get invoice information");
    // 	if (pg_numrows ($invRslt) < 1) {
    // 		return "<li>- Invoice Not Found[1]</li>";
    // 	}
    $inv = pg_fetch_array($invRslt);
    $inv['traddisc'] = $traddisc;
    $inv['chrgvat'] = 0;
    # check if invoice has been printed
    // 	if($inv['printed'] == "y"){
    // 		$error = "<li class=err> Error : Invoice number <b>$invid</b> has already been printed.";
    // 		$error .= "<p><input type=button onClick='JavaScript:history.back();' value='&laquo; Correct submission'>";
    // 		return $error;
    // 	}
    # get department
    db_conn("exten");
    $sql = "SELECT * FROM departments WHERE deptid = '{$deptid}' AND div = '" . USER_DIV . "'";
    $deptRslt = db_exec($sql);
    if (pg_numrows($deptRslt) < 1) {
        $dept['deptname'] = "<i class='err'>Not Found[3]</i>";
    } else {
        $dept = pg_fetch_array($deptRslt);
    }
    # fix those nasty zeros
    $traddisc += 0;
    $delchrg += 0;
    $vatamount = 0;
    $showvat = TRUE;
    # insert invoice to DB
    db_connect();
    if (isset($upBtn) || isset($hirenewBtn)) {
        $update_ret = update($_POST);
    } else {
        $update_ret = false;
    }
    # begin updating
    pglib_transaction("BEGIN");
    /* -- Start remove old items -- */
    # get selected stock in this invoice
    $sql = "SELECT * FROM hire.hire_invitems  WHERE invid = '{$invid}'";
    $stktRslt = db_exec($sql);
    $subtot = 0;
    while ($stkt = pg_fetch_array($stktRslt)) {
        # update stock(alloc + qty)
        //$sql = "UPDATE stock SET alloc = (alloc - '$stkt[qty]')  WHERE stkid = '$stkt[stkid]' AND div = '".USER_DIV."'";
        //$rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.",SELF);
        //if(strlen($stkt['serno']) > 0)
        //ext_unresvSer($stkt['serno'], $stkt['stkid']);
        $subtot += $stkt["amt"];
    }
    # remove old items
    /* --- ----------- Clac --------------------- */
    ##----------------------NEW----------------------
    $VATP = TAX_VAT;
    $subtotal = sprint($subtot + $delchrg);
    $traddiscmt = sprint($subtotal * $traddisc / 100);
    $subtotal = sprint($subtotal - $traddiscmt);
    $VAT = $subtotal / 100 * 14;
    $SUBTOT = $subtotal;
    $TOTAL = $subtotal + $VAT;
    $delexvat = sprint($delchrg);
    $Sl = "SELECT * FROM posround";
    $Ri = db_exec($Sl);
    $data = pg_fetch_array($Ri);
    if ($data['setting'] == "5cent") {
        if (sprint(floor(sprint($TOTAL / 0.05))) != sprint($TOTAL / 0.05)) {
            $otot = $TOTAL;
            $nTOTAL = sprint(sprint(floor($TOTAL / 0.05)) * 0.05);
            $rounding = $otot - $nTOTAL;
        } else {
            $rounding = 0;
        }
    } else {
        $rounding = 0;
    }
    //print sprint(floor($TOTAL/0.05));
    #get accno if invoice is on credit
    if ($cusnum != "0") {
        $get_acc = "SELECT * FROM customers WHERE cusnum = '{$cusnum}' LIMIT 1";
        $run_acc = db_exec($get_acc) or errDie("Unable to get customer information");
        if (pg_numrows($run_acc) < 1) {
            $accno = "";
        } else {
            $arr = pg_fetch_array($run_acc);
            $cusacc = $arr['accno'];
            $cusname = "{$arr['cusname']} {$arr['surname']}";
        }
    } else {
        $cusacc = "";
        $cusname = "";
    }
    # insert invoice to DB
    $sql = "\r\n\t\t\tUPDATE hire.hire_invoices \r\n\t\t\tSET cusnum='{$cusnum}', cusname='{$cusname}', rounding='{$rounding}', deptid='{$deptid}', deptname='{$dept['deptname']}', \r\n\t\t\t\tcordno='{$cordno}', ordno='{$ordno}', salespn='{$salespid}', odate='{$odate}', traddisc='{$traddisc}', \r\n\t\t\t\tdelchrg='{$delchrg}', subtot='{$SUBTOT}', vat='{$VAT}',balance='{$TOTAL}', total='{$TOTAL}', discount='{$traddiscmt}', \r\n\t\t\t\tdelivery='{$delexvat}', vatnum='{$vatnum}', cusacc='{$cusacc}', telno='{$telno}', deposit_type='{$deposit_type}', \r\n\t\t\t\tdeposit_amt='{$deposit_amt}', collection='{$collection}', custom_txt='{$custom_txt}', branch_addr='{$branch_addr}' \r\n\t\t\tWHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice in Cubit.", SELF);
    # remove old data
    $sql = "DELETE FROM pinv_data WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice data in Cubit.", SELF);
    # put in new data
    $sql = "INSERT INTO pinv_data(invid, dept, customer, div) VALUES('{$invid}', '{$dept['deptname']}', '{$client}', '" . USER_DIV . "')";
    $rslt = db_exec($sql) or errDie("Unable to insert invoice data to Cubit.", SELF);
    # commit updating
    pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
    return details($_POST, $update_ret);
    if (strlen($bar) > 0) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return details($_POST, "Please go set the point of sale settings under the stock settings");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($bar, strlen($bar) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return details($_POST, "The code you selected is invalid");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $bar, 'stock');
            if (!($stid > 0)) {
                return details($_POST, "<li class='err'><b>ERROR</b>: The bar code you selected is not in the system or is not available.</li>");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "\r\n\t\t\t\tINSERT INTO hire.hire_invitems (\r\n\t\t\t\t\tinvid, whid, stkid, qty, amt, disc, discp, ss, serno, \r\n\t\t\t\t\tdiv\r\n\t\t\t\t) VALUES (\r\n\t\t\t\t\t'{$invid}', '{$s['whid']}', '{$stid}', '1', '{$s['selamt']}', '{$s['selamt']}', '0', '0', '{$bar}', '{$bar}', \r\n\t\t\t\t\t'" . USER_DIV . "'\r\n\t\t\t\t)";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "UPDATE " . $tab . " SET active = 'no' WHERE code = '{$bar}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $stid = ext_dbget('stock', 'bar', $bar, 'stkid');
            if (!($stid > 0)) {
                return details($_POST, "<li class='err'><b>ERROR</b>: The bar code you selected is not in the system or is not available.</li>");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO hire.hire_invitems(invid, whid, stkid, qty, amt, disc, discp,ss, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1', '{$s['selamt']}','0','0','{$bar}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    /* --- Start button Listeners --- */
    if (isset($doneBtn)) {
        # check if stock was selected(yes = put done button)
        db_connect();
        $sql = "SELECT stkid FROM hire.hire_invitems WHERE invid = '{$inv['invid']}' AND div = '" . USER_DIV . "'";
        $crslt = db_exec($sql);
        if (pg_numrows($crslt) < 1) {
            $error = "<li class='err'> Error : Invoice number has no items.</li>";
            return details($_POST, $error);
        }
        $TOTAL = sprint($TOTAL - $rounding);
        if ($pcash + $pcheque + $pcc + $pcredit < $TOTAL) {
            return details($_POST, "<li class='err'>The total of all the payments is less than the invoice total</li>");
        }
        $change = sprint(sprint($pcash + $pcheque + $pcc + $pcredit) - sprint($TOTAL));
        $pcash = sprint($pcash - $change);
        if ($pcash < 0) {
            $pcash = 0;
        }
        if (sprint($pcash + $pcheque + $pcc + $pcredit) != sprint($TOTAL)) {
            return details($_POST, "<li class='err'>The total of all the payments is not equal to the invoice total.<br>\r\n\t\t\t(You can only overpay with cash)</li>");
        }
        // make plant available
        $sql = "UPDATE hire.hire_invoices SET done = 'y' WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update invoice status in Cubit.", SELF);
        # print the invoice
        $OUTPUT = "<script>printer('pos-invoice-print.php?invid={$invid}');move('pos-invoice-new.php');</script>";
        require "template.php";
    } elseif (isset($cancel)) {
        // Final Laytout
        $write = "\r\n\t\t\t<table border='0' cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<th>New Point of Sale Invoice Saved</th>\r\n\t\t\t\t</tr>\r\n\t\t\t\t<tr class='" . bg_class() . "'>\r\n\t\t\t\t\t<td>Invoice for <b>{$client}</b> has been saved.</td>\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t<p>\r\n\t\t\t<table border=0 cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<th>Quick Links</th>\r\n\t\t\t\t</tr>\r\n\t\t\t\t<tr class='" . bg_class() . "'>\r\n\t\t\t\t\t<td><a href='pos-invoice-new.php'>New Point of Sale Invoice</a></td>\r\n\t\t\t\t</tr>\r\n\t\t\t\t<tr class='" . bg_class() . "'>\r\n\t\t\t\t\t<td><a href='pos-invoice-list.php'>View Point of Sale Invoices</a></td>\r\n\t\t\t\t</tr>\r\n\t\t\t\t<script>document.write(getQuicklinkSpecial());</script>\r\n\t\t\t</table>";
        return $write;
    } else {
        if (isset($wtd)) {
            $_POST['wtd'] = $wtd;
        }
        return details($_POST);
    }
}
function write($_POST)
{
    # Get vars
    extract($_POST);
    if (!isset($cusnum)) {
        return details($_POST, "<li class='err'>Please select a customer.</li>");
    }
    # validate input
    require_lib("validate");
    $v = new validate();
    if (isset($cusnum)) {
        $v->isOk($cusnum, "num", 1, 20, "Invalid Customer, Please select a customer.");
    }
    $v->isOk($invid, "num", 1, 20, "Invalid Invoice Number.");
    if (isset($cordno)) {
        $v->isOk($cordno, "string", 0, 20, "Invalid Customer Order Number.");
    }
    if (!isset($ria)) {
        $ria = "";
    }
    $v->isOk($ria, "string", 0, 20, "Invalid stock code(fist letters).");
    $v->isOk($comm, "string", 0, 255, "Invalid Comments.");
    $v->isOk($docref, "string", 0, 20, "Invalid Document Reference No.");
    $v->isOk($ordno, "string", 0, 20, "Invalid sales order number.");
    $v->isOk($chrgvat, "string", 1, 4, "Invalid charge vat option.");
    $v->isOk($terms, "num", 1, 20, "Invalid terms.");
    $v->isOk($salespn, "string", 1, 255, "Invalid sales person.");
    $v->isOk($rinv_day, "num", 1, 2, "Invalid Invoice Date day.");
    $v->isOk($rinv_month, "num", 1, 2, "Invalid Invoice Date month.");
    $v->isOk($rinv_year, "num", 1, 5, "Invalid Invoice Date year.");
    $odate = $rinv_year . "-" . $rinv_month . "-" . $rinv_day;
    if (!checkdate($rinv_month, $rinv_day, $rinv_year)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($traddisc, "float", 0, 20, "Invalid Trade Discount.");
    if ($traddisc > 100) {
        $v->isOk($traddisc, "float", 0, 0, "Error : Trade Discount cannot be more than 100 %.");
    }
    $v->isOk($delchrg, "float", 0, 20, "Invalid Delivery Charge.");
    $v->isOk($SUBTOT, "float", 0, 20, "Invalid Delivery Charge.");
    # used to generate errors
    $error = "asa@";
    # check if duplicate serial number selected, remove blanks
    if (isset($sernos)) {
        if (!ext_isUnique(ext_remBlnk($sernos))) {
            $v->isOk($error, "num", 0, 0, "Error : Serial Numbers must be unique per line item.");
        }
    }
    # check quantities
    if (isset($qtys)) {
        foreach ($qtys as $keys => $qty) {
            $discp[$keys] += 0;
            $disc[$keys] += 0;
            $v->isOk($qty, "float", 1, 15, "Invalid Quantity for product number : <b>" . ($keys + 1) . "</b>");
            $v->isOk($disc[$keys], "float", 0, 20, "Invalid Discount for product number : <b>" . ($keys + 1) . "</b>.");
            if ($disc[$keys] > $unitcost[$keys]) {
                $v->isOk($disc[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than the unitcost.");
            }
            $v->isOk($discp[$keys], "float", 0, 20, "Invalid Discount Percentage for product number : <b>" . ($keys + 1) . "</b>.");
            if ($discp[$keys] > 100) {
                $v->isOk($discp[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than 100 %.");
            }
            $v->isOk($unitcost[$keys], "float", 1, 20, "Invalid Unit Price for product number : <b>" . ($keys + 1) . "</b>.");
            if ($qty <= 0) {
                $v->isOk($qty, "num", 0, 0, "Error : Item Quantity must be more than zero. Product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check whids
    if (isset($whids)) {
        foreach ($whids as $keys => $whid) {
            $v->isOk($whid, "num", 1, 10, "Invalid Store number, please enter all details.");
        }
    }
    # check stkids
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            $v->isOk($stkid, "num", 1, 10, "Invalid Stock number, please enter all details.");
        }
    }
    # check amt
    if (isset($amt)) {
        foreach ($amt as $keys => $amount) {
            $v->isOk($amount, "float", 1, 20, "Invalid Amount, please enter all details.");
        }
    }
    # display errors, if any
    $err = "";
    if ($v->isError()) {
        $errors = $v->getErrors();
        foreach ($errors as $e) {
            $err .= "<li class='err'>" . $e["msg"] . "</li>";
        }
        return details($_POST, $err);
    }
    # Get invoice info
    db_connect();
    $sql = "SELECT * FROM rec_invoices WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $invRslt = db_exec($sql) or errDie("Unable to get invoice information");
    if (pg_numrows($invRslt) < 1) {
        return "<li>- Invoice Not Found</li>";
    }
    $inv = pg_fetch_array($invRslt);
    $inv['chrgvat'] = $chrgvat;
    # Get selected customer info
    db_connect();
    $sql = "SELECT * FROM customers WHERE cusnum = '{$cusnum}' AND div = '" . USER_DIV . "'";
    $custRslt = db_exec($sql) or errDie("Unable to get customer information");
    if (pg_numrows($custRslt) < 1) {
        $sql = "SELECT * FROM inv_data WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $custRslt = db_exec($sql) or errDie("Unable to get customer information data");
        $cust = pg_fetch_array($custRslt);
        $cust['cusname'] = $cust['customer'];
        $cust['surname'] = "";
        $cust['addr1'] = "";
    } else {
        $cust = pg_fetch_array($custRslt);
        $inv['deptid'] = $cust['deptid'];
        # If customer was just selected, get the following
        if ($inv['cusnum'] == 0) {
            $traddisc = $cust['traddisc'];
            $terms = $cust['credterm'];
        }
    }
    # get department
    db_conn("exten");
    $sql = "SELECT * FROM departments WHERE deptid = '{$inv['deptid']}' AND div = '" . USER_DIV . "'";
    $deptRslt = db_exec($sql);
    if (pg_numrows($deptRslt) < 1) {
        $dept['deptname'] = "<i class='err'>Not Found</i>";
    } else {
        $dept = pg_fetch_array($deptRslt);
    }
    # fix those nasty zeros
    $traddisc += 0;
    $delchrg += 0;
    $vatamount = 0;
    $showvat = TRUE;
    # insert invoice to DB
    db_connect();
    # begin updating
    pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
    /* -- Start remove old items -- */
    # get selected stock in this invoice
    $sql = "SELECT * FROM recinv_items  WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $stktRslt = db_exec($sql);
    # remove old items
    $sql = "DELETE FROM recinv_items WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice items in Cubit.", SELF);
    /* -- End remove old items -- */
    $taxex = 0;
    if (isset($qtys)) {
        foreach ($qtys as $keys => $value) {
            if (isset($remprod) && in_array($keys, $remprod)) {
            } elseif (isset($accounts[$keys]) && $accounts[$keys] != 0) {
                $accounts[$keys] += 0;
                # Get selamt from selected stock
                db_conn('core');
                $Sl = "SELECT * FROM accounts WHERE accid='{$accounts[$keys]}'";
                $Ri = db_exec($Sl) or errDie("Unable to get account data.");
                $ad = pg_fetch_array($Ri);
                # Calculate amount
                $amt[$keys] = $qtys[$keys] * $unitcost[$keys];
                db_conn('cubit');
                $Sl = "SELECT * FROM vatcodes WHERE id='{$vatcodes[$keys]}'";
                $Ri = db_exec($Sl);
                if (pg_num_rows($Ri) < 1) {
                    return details($_POST, "<li class='err'>Please select the vatcode for all your items.</li>");
                }
                $vd = pg_fetch_array($Ri);
                if ($vd['zero'] == "Yes") {
                    $excluding = "y";
                } else {
                    $excluding = "";
                }
                if (TAX_VAT != $vd['vat_amount'] and $vd['vat_amount'] != "0.00") {
                    $showvat = FALSE;
                }
                $vr = vatcalc($amt[$keys], $inv['chrgvat'], $excluding, $inv['traddisc'], $vd['vat_amount']);
                $vrs = explode("|", $vr);
                $ivat = $vrs[0];
                $iamount = $vrs[1];
                $vatamount += $ivat;
                # Check Tax Excempt
                if ($vd['zero'] == "Yes") {
                    $taxex += $amt[$keys];
                    $exvat = "y";
                } else {
                    $exvat = "n";
                }
                //$newvat+=vatcalc($amt[$keys],$chrgvat,$exvat,$traddisc);
                $vatcodes[$keys] += 0;
                $accounts[$keys] += 0;
                $descriptions[$keys] = remval($descriptions[$keys]);
                $wtd = $whids[$keys];
                # insert invoice items
                $sql = "\n\t\t\t\t\t\tINSERT INTO recinv_items (\n\t\t\t\t\t\t\tinvid, whid, stkid, qty, unitcost, \n\t\t\t\t\t\t\tamt, disc, discp,  div, vatcode, \n\t\t\t\t\t\t\tdescription, account\n\t\t\t\t\t\t) VALUES (\n\t\t\t\t\t\t\t'{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', \n\t\t\t\t\t\t\t'{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '" . USER_DIV . "', '{$vatcodes[$keys]}', \n\t\t\t\t\t\t\t'{$descriptions[$keys]}', '{$accounts[$keys]}'\n\t\t\t\t\t\t)";
                $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            } else {
                # Get selamt from selected stock
                $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $stkRslt = db_exec($sql);
                $stk = pg_fetch_array($stkRslt);
                # Calculate the Discount discount
                if ($disc[$keys] < 1) {
                    if ($discp[$keys] > 0) {
                        $disc[$keys] = $discp[$keys] / 100 * $unitcost[$keys];
                    }
                } else {
                    $discp[$keys] = $disc[$keys] * 100 / $unitcost[$keys];
                }
                # Calculate amount
                $amt[$keys] = $qtys[$keys] * ($unitcost[$keys] - $disc[$keys]);
                $Sl = "SELECT * FROM vatcodes WHERE id='{$vatcodes[$keys]}'";
                $Ri = db_exec($Sl);
                if (pg_num_rows($Ri) < 1) {
                    return details($_POST, "<li class='err'>Please select the vatcode for all your items.</li>");
                }
                $vd = pg_fetch_array($Ri);
                if ($vd['zero'] == "Yes") {
                    $excluding = "y";
                } else {
                    $excluding = "";
                }
                if (TAX_VAT != $vd['vat_amount'] and $vd['vat_amount'] != "0.00") {
                    $showvat = FALSE;
                }
                $vr = vatcalc($amt[$keys], $inv['chrgvat'], $excluding, $inv['traddisc'], $vd['vat_amount']);
                $vrs = explode("|", $vr);
                $ivat = $vrs[0];
                $iamount = $vrs[1];
                $vatamount += $ivat;
                # Check Tax Excempt
                if ($stk['exvat'] == 'yes' || $vd['zero'] == "Yes") {
                    $taxex += $amt[$keys];
                    $exvat = "y";
                } else {
                    $exvat = "n";
                }
                $wtd = $whids[$keys];
                if (!isset($sernos[$keys])) {
                    $sernos[$keys] = "";
                }
                # insert invoice items
                $sql = "\n\t\t\t\t\t\tINSERT INTO recinv_items (\n\t\t\t\t\t\t\tinvid, whid, stkid, qty, unitcost, \n\t\t\t\t\t\t\tamt, disc, discp, serno, div, \n\t\t\t\t\t\t\tvatcode\n\t\t\t\t\t\t) VALUES (\n\t\t\t\t\t\t\t'{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', \n\t\t\t\t\t\t\t'{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '{$sernos[$keys]}', '" . USER_DIV . "', \n\t\t\t\t\t\t\t'{$vatcodes[$keys]}'\n\t\t\t\t\t\t)";
                $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            }
            # everything is set place done button
            $_POST["done"] = " | <input name='doneBtn' type='submit' value='Done'>";
        }
    } else {
        $_POST["done"] = "";
    }
    db_conn('cubit');
    $Sl = "SELECT * FROM vatcodes WHERE id='{$delvat}'";
    $Ri = db_exec($Sl);
    // 		if(pg_num_rows($Ri)>0) {
    // 			$taxex += $delchrg;
    // 		}
    $vd = pg_fetch_array($Ri);
    if ($vd['zero'] == "Yes") {
        $excluding = "y";
    } else {
        $excluding = "";
    }
    if (TAX_VAT != $vd['vat_amount'] and $vd['vat_amount'] != "0.00") {
        $showvat = FALSE;
    }
    $_POST['showvat'] = $showvat;
    $vr = vatcalc($delchrg, $inv['chrgvat'], $excluding, $inv['traddisc'], $vd['vat_amount']);
    $vrs = explode("|", $vr);
    $ivat = $vrs[0];
    $iamount = $vrs[1];
    $vatamount += $ivat;
    /* --- ----------- Clac --------------------- */
    ##----------------------NEW----------------------
    $sub = 0.0;
    if (isset($amt)) {
        $sub = sprint(array_sum($amt));
    }
    $VATP = TAX_VAT;
    if ($chrgvat == "exc") {
        $taxex = sprint($taxex - $taxex * $traddisc / 100);
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        //$VAT=sprint(($subtotal-$taxex)*$VATP/100);
        $VAT = $vatamount;
        $SUBTOT = $sub;
        $TOTAL = sprint($subtotal + $VAT);
        $delexvat = sprint($delchrg);
    } elseif ($chrgvat == "inc") {
        $ot = $taxex;
        $taxex = sprint($taxex - $taxex * $traddisc / 100);
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        //$VAT=sprint(($subtotal-$taxex)*$VATP/(100+$VATP));
        $VAT = $vatamount;
        $SUBTOT = sprint($sub);
        $TOTAL = sprint($subtotal);
        $delexvat = sprint($delchrg);
        $traddiscmt = sprint($traddiscmt);
    } else {
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        $VAT = sprint(0);
        $SUBTOT = $sub;
        $TOTAL = $subtotal;
        $delexvat = sprint($delchrg);
    }
    /* --- ----------- Clac --------------------- */
    ##----------------------END----------------------
    db_conn('cubit');
    $Sl = "SELECT * FROM costcenters";
    $Ri = db_exec($Sl);
    $i = 0;
    $Sl = "DELETE FROM invc WHERE inv='{$invid}'";
    $Rl = db_exec($Sl);
    while ($data = pg_fetch_array($Ri)) {
        if ($ct[$data['ccid']] > 0) {
            $Sl = "INSERT INTO invc (cid,inv,amount) VALUES ('{$data['ccid']}','{$invid}','" . $ct[$data['ccid']] . "')";
            $Rl = db_exec($Sl);
        }
        $i++;
    }
    /* --- ----------- Clac ---------------------
    
    		# calculate subtot
    		$SUBTOT = 0.00;
    		if(isset($amt))
    			$SUBTOT = array_sum($amt);
    
    		$SUBTOT -= $taxex;
    
    		# duplicate
    		$SUBTOTAL = $SUBTOT;
    
    		$VATP = TAX_VAT;
    		if($chrgvat == "exc"){
    			$SUBTOTAL = $SUBTOTAL;
    			$delexvat= ($delchrg);
    		}elseif($chrgvat == "inc"){
    			$SUBTOTAL = sprint(($SUBTOTAL * 100)/(100 + $VATP));
    			$delexvat = sprint(($delchrg * 100)/($VATP + 100));
    		}else{
    			$SUBTOTAL = ($SUBTOTAL);
    			$delexvat = ($delchrg);
    		}
    
    		$SUBTOT = $SUBTOTAL;
    		$EXVATTOT = $SUBTOT;
    		$EXVATTOT += $delexvat;
    
    		# Minus trade discount from taxex
    		if($traddisc > 0){
    			$traddiscmtt = (($traddisc/100) * $taxex);
    		}else{
    			$traddiscmtt = 0;
    		}
    		$taxext = ($taxex - $traddiscmtt);
    
    		if($traddisc > 0) {
    			$traddiscmt = ($EXVATTOT * ($traddisc/100));
    		}else{
    			$traddiscmt = 0;
    		}
    		$EXVATTOT -= $traddiscmt;
    		// $EXVATTOT -= $taxex;
    
    		$traddiscmt = sprint($traddiscmt  + $traddiscmtt);
    
    		if($chrgvat != "nov"){
    			$VAT = sprint($EXVATTOT * ($VATP/100));
    		}else{
    			$VAT = 0;
    		}
    
    		$TOTAL = sprint($EXVATTOT + $VAT + $taxext);
    		$SUBTOT += $taxex;
    
    /* --- ----------- Clac --------------------- */
    # insert invoice to DB
    $sql = "\n\t\t\tUPDATE rec_invoices \n\t\t\tSET delvat='{$delvat}', cusnum = '{$cusnum}', deptid = '{$dept['deptid']}', deptname = '{$dept['deptname']}', \n\t\t\t\tcusacc = '{$cust['accno']}', cusname = '{$cust['cusname']}', surname = '{$cust['surname']}', cusaddr = '{$cust['addr1']}', \n\t\t\t\tcusvatno = '{$cust['vatnum']}', cordno = '{$cordno}', ordno = '{$ordno}', docref = '{$docref}',\n\t\t\t\tchrgvat = '{$chrgvat}', terms = '{$terms}', salespn = '{$salespn}', odate = '{$odate}', traddisc = '{$traddisc}', \n\t\t\t\tdelchrg = '{$delchrg}', subtot = '{$SUBTOT}', vat = '{$VAT}', total = '{$TOTAL}', balance = '{$TOTAL}', \n\t\t\t\tcomm = '{$comm}', serd = 'y', discount='{$traddiscmt}', delivery='{$delexvat}' \n\t\t\tWHERE invid = '{$invid}'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice in Cubit.", SELF);
    # commit updating
    pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
    if (strlen($bar) > 0) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return details($_POST, "<a href='pos-set.php'>Please set the point of sale setting by clicking here.</a>");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($bar, strlen($bar) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return details($_POST, "The code you selected is invalid");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $bar, 'stock');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "\n\t\t\t\tINSERT INTO recinv_items (\n\t\t\t\t\tinvid, whid, stkid, qty, unitcost, amt, disc, discp, ss, div\n\t\t\t\t) VALUES (\n\t\t\t\t\t'{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}', '{$s['selamt']}', '0', '0', '{$bar}', '" . USER_DIV . "'\n\t\t\t\t)";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "UPDATE " . $tab . " SET active = 'no' WHERE code = '{$bar}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        } else {
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = ext_dbget('stock', 'bar', $bar, 'stkid');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "\n\t\t\t\tINSERT INTO recinv_items (\n\t\t\t\t\tinvid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div\n\t\t\t\t) VALUES (\n\t\t\t\t\t'{$invid}', '{$s['whid']}', '{$stid}', '1', '{$s['selamt']}', '{$s['selamt']}', '0', '0', '{$bar}',  '" . USER_DIV . "'\n\t\t\t\t)";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    /* --- Start button Listeners --- */
    if (isset($saveBtn)) {
        // Final Laytout
        $write = "\n\t\t\t<table " . TMPL_tblDflts . ">\n\t\t\t\t<tr>\n\t\t\t\t\t<th>Recurring Invoice Saved</th>\n\t\t\t\t</tr>\n\t\t\t\t<tr class='" . bg_class() . "'>\n\t\t\t\t\t<td>Recurring Invoice for customer <b>{$cust['cusname']} {$cust['surname']}</b> has been saved.</td>\n\t\t\t\t</tr>\n\t\t\t</table>" . mkQuickLinks(ql("rec-invoice-view.php", "View Recurring Invoices"), ql("customers-new.php", "New Customer"));
        return $write;
    } else {
        if (isset($wtd)) {
            $_POST['wtd'] = $wtd;
        }
        if (strlen($ria) > 0) {
            $_POST['ria'] = $ria;
        }
        return details($_POST);
    }
    /* --- End button Listeners --- */
}
function write($_POST)
{
    # Get vars
    foreach ($_POST as $key => $value) {
        ${$key} = $value;
    }
    # validate input
    require_lib("validate");
    $v = new validate();
    $v->isOk($cusnum, "num", 1, 20, "Invalid Customer, Please select a customer.");
    $v->isOk($invid, "num", 1, 20, "Invalid Invoice Number.");
    $v->isOk($cordno, "string", 0, 20, "Invalid Customer Order Number.");
    if (!isset($ria)) {
        $ria = "";
    }
    $v->isOk($ria, "string", 0, 20, "Invalid stock code(fist letters).");
    $v->isOk($comm, "string", 0, 255, "Invalid Comments.");
    $v->isOk($docref, "num", 0, 20, "Invalid Document Reference No.");
    $v->isOk($ordno, "num", 0, 20, "Invalid sales order number.");
    $v->isOk($chrgvat, "string", 1, 4, "Invalid charge vat option.");
    $v->isOk($terms, "num", 1, 20, "Invalid terms.");
    $v->isOk($salespn, "string", 1, 255, "Invalid sales person.");
    $v->isOk($oday, "num", 1, 2, "Invalid Invoice Date day.");
    $v->isOk($omon, "num", 1, 2, "Invalid Invoice Date month.");
    $v->isOk($oyear, "num", 1, 5, "Invalid Invoice Date year.");
    $odate = $oyear . "-" . $omon . "-" . $oday;
    if (!checkdate($omon, $oday, $oyear)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($traddisc, "float", 0, 20, "Invalid Trade Discount.");
    if ($traddisc > 100) {
        $v->isOk($traddisc, "float", 0, 0, "Error : Trade Discount cannot be more than 100 %.");
    }
    $v->isOk($delchrg, "float", 0, 20, "Invalid Delivery Charge.");
    $v->isOk($SUBTOT, "float", 0, 20, "Invalid Delivery Charge.");
    # used to generate errors
    $error = "asa@";
    # check if duplicate serial number selected, remove blanks
    if (isset($sernos)) {
        if (!ext_isUnique(ext_remBlnk($sernos))) {
            $v->isOk($error, "num", 0, 0, "Error : Serial Numbers must be unique per line item.");
        }
    }
    # check is serai no was selected
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            # check if serial is selected
            if (ext_isSerial("stock", "stkid", $stkid) && !isset($sernos[$keys])) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            } elseif (ext_isSerial("stock", "stkid", $stkid) && !(strlen($sernos[$keys]) > 0)) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check quantities
    if (isset($qtys)) {
        foreach ($qtys as $keys => $qty) {
            $discp[$keys] += 0;
            $disc[$keys] += 0;
            $v->isOk($qty, "num", 1, 10, "Invalid Quantity for product number : <b>" . ($keys + 1) . "</b>");
            $v->isOk($disc[$keys], "float", 0, 20, "Invalid Discount for product number : <b>" . ($keys + 1) . "</b>.");
            if ($disc[$keys] > $unitcost[$keys]) {
                $v->isOk($disc[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than the unitcost.");
            }
            $v->isOk($discp[$keys], "float", 0, 20, "Invalid Discount Percentage for product number : <b>" . ($keys + 1) . "</b>.");
            if ($discp[$keys] > 100) {
                $v->isOk($discp[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than 100 %.");
            }
            $v->isOk($unitcost[$keys], "float", 1, 20, "Invalid Unit Price for product number : <b>" . ($keys + 1) . "</b>.");
            if ($qty < 1) {
                $v->isOk($qty, "num", 0, 0, "Error : Item Quantity must be at least one. Product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check whids
    if (isset($whids)) {
        foreach ($whids as $keys => $whid) {
            $v->isOk($whid, "num", 1, 10, "Invalid Store number, please enter all details.");
        }
    }
    # check stkids
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            $v->isOk($stkid, "num", 1, 10, "Invalid Stock number, please enter all details.");
        }
    }
    # check amt
    if (isset($amt)) {
        foreach ($amt as $keys => $amount) {
            $v->isOk($amount, "float", 1, 20, "Invalid Amount, please enter all details.");
        }
    }
    # display errors, if any
    $err = "";
    if ($v->isError()) {
        $errors = $v->getErrors();
        foreach ($errors as $e) {
            $err .= "<li class=err>" . $e["msg"];
        }
        return details($_POST, $err);
    }
    # Get invoice info
    db_connect();
    $sql = "SELECT * FROM invoices WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $invRslt = db_exec($sql) or errDie("Unable to get invoice information");
    if (pg_numrows($invRslt) < 1) {
        return "<li>- Invoice Not Found</li>";
    }
    $inv = pg_fetch_array($invRslt);
    # check if invoice has been printed
    if ($inv['printed'] == "y") {
        $error = "<li class=err> Error : Invoice number <b>{$invid}</b> has already been printed.";
        $error .= "<p><input type=button onClick='JavaScript:history.back();' value='&laquo; Correct submission'>";
        return $error;
    }
    # Get selected customer info
    db_connect();
    $sql = "SELECT * FROM customers WHERE cusnum = '{$cusnum}' AND div = '" . USER_DIV . "'";
    $custRslt = db_exec($sql) or errDie("Unable to get customer information");
    if (pg_numrows($custRslt) < 1) {
        $sql = "SELECT * FROM inv_data WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $custRslt = db_exec($sql) or errDie("Unable to get customer information data");
        $cust = pg_fetch_array($custRslt);
        $cust['cusname'] = $cust['customer'];
        $cust['surname'] = "";
        $cust['addr1'] = "";
    } else {
        $cust = pg_fetch_array($custRslt);
        # If customer was just selected, get the following
        if ($inv['cusnum'] == 0) {
            $traddisc = $cust['traddisc'];
            $terms = $cust['credterm'];
        }
    }
    # get department
    db_conn("exten");
    $sql = "SELECT * FROM departments WHERE deptid = '{$inv['deptid']}' AND div = '" . USER_DIV . "'";
    $deptRslt = db_exec($sql);
    if (pg_numrows($deptRslt) < 1) {
        $dept['deptname'] = "<i class=err>Not Found</i>";
    } else {
        $dept = pg_fetch_array($deptRslt);
    }
    # fix those nasty zeros
    $traddisc += 0;
    $delchrg += 0;
    # insert invoice to DB
    db_connect();
    # begin updating
    pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
    /* -- Start remove old items -- */
    # get selected stock in this invoice
    $sql = "SELECT * FROM inv_items  WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $stktRslt = db_exec($sql);
    while ($stkt = pg_fetch_array($stktRslt)) {
        # update stock(alloc + qty)
        $sql = "UPDATE stock SET alloc = (alloc - '{$stkt['qty']}')  WHERE stkid = '{$stkt['stkid']}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
        if (strlen($stkt['serno']) > 0) {
            ext_unresvSer($stkt['serno'], $stkt['stkid']);
        }
    }
    # remove old items
    $sql = "DELETE FROM inv_items WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice items in Cubit.", SELF);
    /* -- End remove old items -- */
    $taxex = 0;
    if (isset($qtys)) {
        foreach ($qtys as $keys => $value) {
            if (isset($remprod)) {
                if (in_array($keys, $remprod)) {
                    # skip product (wonder if $keys still align)
                    $amt[$keys] = 0;
                    continue;
                } else {
                    # get selamt from selected stock
                    $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                    $stkRslt = db_exec($sql);
                    $stk = pg_fetch_array($stkRslt);
                    # Calculate the Discount discount
                    if ($disc[$keys] < 1) {
                        if ($discp[$keys] > 0) {
                            $disc[$keys] = $discp[$keys] / 100 * $unitcost[$keys];
                        }
                    } else {
                        $discp[$keys] = $disc[$keys] * 100 / $unitcost[$keys];
                    }
                    # Calculate amount
                    # $amt[$keys] = (($qtys[$keys] * $unitcost[$keys]) - $disc[$keys]);
                    $amt[$keys] = $qtys[$keys] * ($unitcost[$keys] - $disc[$keys]);
                    # Check Tax Excempt
                    if ($stk['exvat'] == 'yes') {
                        $taxex += $amt[$keys];
                    }
                    $wtd = $whids[$keys];
                    # insert invoice items
                    $sql = "INSERT INTO inv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, serno, div) VALUES('{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', '{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '{$sernos[$keys]}','" . USER_DIV . "')";
                    $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
                    if (strlen($stkt['serno']) > 0) {
                        ext_resvSer($stkt['serno'], $stk['stkid']);
                    }
                    # update stock(alloc + qty)
                    $sql = "UPDATE stock SET alloc = (alloc + '{$qtys[$keys]}') WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                    $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
                }
            } else {
                # Get selamt from selected stock
                $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $stkRslt = db_exec($sql);
                $stk = pg_fetch_array($stkRslt);
                # Calculate the Discount discount
                if ($disc[$keys] < 1) {
                    if ($discp[$keys] > 0) {
                        $disc[$keys] = $discp[$keys] / 100 * $unitcost[$keys];
                    }
                } else {
                    $discp[$keys] = $disc[$keys] * 100 / $unitcost[$keys];
                }
                # Calculate amount
                $amt[$keys] = $qtys[$keys] * ($unitcost[$keys] - $disc[$keys]);
                # Check Tax Excempt
                if ($stk['exvat'] == 'yes') {
                    $taxex += $amt[$keys];
                }
                $wtd = $whids[$keys];
                # insert invoice items
                $sql = "INSERT INTO inv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, serno, div) VALUES('{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', '{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '{$sernos[$keys]}','" . USER_DIV . "')";
                $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
                if (strlen($sernos[$keys]) > 0) {
                    ext_resvSer($sernos[$keys], $stk['stkid']);
                }
                # update stock(alloc + qty)
                $sql = "UPDATE stock SET alloc = (alloc + '{$qtys[$keys]}') WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            }
            # everything is set place done button
            $_POST["done"] = " | <input name=doneBtn type=submit value='Print'>";
        }
    } else {
        $_POST["done"] = "";
    }
    /* --- ----------- Clac --------------------- */
    # calculate subtot
    $SUBTOT = 0.0;
    if (isset($amt)) {
        $SUBTOT = array_sum($amt);
    }
    $SUBTOT -= $taxex;
    # duplicate
    $SUBTOTAL = $SUBTOT;
    $VATP = TAX_VAT;
    if ($chrgvat == "exc") {
        $SUBTOTAL = $SUBTOTAL;
        $delexvat = $delchrg;
    } elseif ($chrgvat == "inc") {
        $SUBTOTAL = sprint($SUBTOTAL * 100 / (100 + $VATP));
        $delexvat = sprint($delchrg * 100 / ($VATP + 100));
    } else {
        $SUBTOTAL = $SUBTOTAL;
        $delexvat = $delchrg;
    }
    $SUBTOT = $SUBTOTAL;
    $EXVATTOT = $SUBTOT;
    $EXVATTOT += $delexvat;
    # Minus trade discount from taxex
    if ($traddisc > 0) {
        $traddiscmtt = $traddisc / 100 * $taxex;
    } else {
        $traddiscmtt = 0;
    }
    $taxex -= $traddiscmtt;
    if ($traddisc > 0) {
        $traddiscmt = $EXVATTOT * ($traddisc / 100);
    } else {
        $traddiscmt = 0;
    }
    $EXVATTOT -= $traddiscmt;
    // $EXVATTOT -= $taxex;
    $traddiscmt = sprint($traddiscmt + $traddiscmtt);
    if ($chrgvat != "nov") {
        $VAT = sprint($EXVATTOT * ($VATP / 100));
    } else {
        $VAT = 0;
    }
    $TOTAL = sprint($EXVATTOT + $VAT + $taxex);
    $SUBTOT += $taxex;
    /* --- ----------- Clac --------------------- */
    # insert invoice to DB
    $sql = "UPDATE invoices SET cusnum = '{$cusnum}', deptname = '{$dept['deptname']}', cusacc = '{$cust['accno']}', cusname = '{$cust['cusname']}', surname = '{$cust['surname']}', cusaddr = '{$cust['addr1']}', cusvatno = '{$cust['vatnum']}', cordno = '{$cordno}', ordno = '{$ordno}', docref = '{$docref}',\n\t\tchrgvat = '{$chrgvat}', terms = '{$terms}', salespn = '{$salespn}', odate = '{$odate}', traddisc = '{$traddisc}', delchrg = '{$delchrg}', subtot = '{$SUBTOT}', vat = '{$VAT}', total = '{$TOTAL}', balance = '{$TOTAL}', comm = '{$comm}', serd = 'y', discount='{$traddiscmt}', delivery='{$delexvat}' WHERE invid = '{$invid}'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice in Cubit.", SELF);
    # remove old data
    $sql = "DELETE FROM inv_data WHERE invid='{$invid}'  AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice data in Cubit.", SELF);
    # pu in new data
    $sql = "INSERT INTO inv_data(invid, dept, customer, addr1, div) VALUES('{$invid}', '{$dept['deptname']}', '{$cust['cusname']} {$cust['surname']}', '{$cust['addr1']}', '" . USER_DIV . "')";
    $rslt = db_exec($sql) or errDie("Unable to insert invoice data to Cubit.", SELF);
    # commit updating
    pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
    if (strlen($bar) > 0) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return details($_POST, "Please go set the point of sale settings under the stock settings");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($bar, strlen($bar) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return details($_POST, "The code you selected is invalid");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $bar, 'stock');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO inv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$bar}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "DELETE FROM " . $tab . " WHERE code = '{$bar}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        } else {
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = ext_dbget('stock', 'bar', $bar, 'stkid');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO inv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$bar}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    /* --- Start button Listeners --- */
    if (isset($doneBtn)) {
        # Check if stock was selected(yes = put done button)
        db_connect();
        $sql = "SELECT stkid FROM inv_items WHERE invid = '{$inv['invid']}' AND div = '" . USER_DIV . "'";
        $crslt = db_exec($sql);
        if (pg_numrows($crslt) < 1) {
            $error = "<li class=err> Error : Invoice number has no items.";
            return details($_POST, $error);
        }
        # Insert quote to DB
        $sql = "UPDATE invoices SET done = 'y' WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update invoice status in Cubit.", SELF);
        # Print the invoice
        $OUTPUT = "<script>printer('invoice-print.php?invid={$invid}');move('main.php');</script>";
        require "template.php";
    } elseif (isset($saveBtn)) {
        // Final Laytout
        $write = "\n\t\t<table border=0 cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\n\t\t\t<tr><th>New Invoice Saved</th></tr>\n\t\t\t<tr class='bg-even'><td>Invoice for customer <b>{$cust['cusname']} {$cust['surname']}</b> has been saved.</td></tr>\n\t\t</table>\n\t\t<p>\n\t\t<table border=0 cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\n\t\t\t<tr><th>Quick Links</th></tr>\n\t\t\t<tr class='bg-odd'><td><a href='invoice-view.php'>View Invoices</a></td></tr>\n\t\t\t<script>document.write(getQuicklinkSpecial());</script>\n\t\t\t<tr class='bg-odd'><td><a href='main.php'>Main Menu</a></td></tr>\n\t\t</table>";
        return $write;
    } else {
        if (isset($wtd)) {
            $_POST['wtd'] = $wtd;
        }
        if (strlen($ria) > 0) {
            $_POST['ria'] = $ria;
        }
        return details($_POST);
    }
    /* --- End button Listeners --- */
}
function write($_POST)
{
    # Get vars
    extract($_POST);
    # validate input
    require_lib("validate");
    $v = new validate();
    $v->isOk($cusnum, "num", 1, 20, "Invalid Customer, Please select a customer.");
    $v->isOk($invid, "num", 1, 20, "Invalid Invoice Number.");
    $v->isOk($cordno, "string", 0, 20, "Invalid Customer Order Number.");
    if (!isset($ria)) {
        $ria = "";
    }
    $v->isOk($ria, "string", 0, 20, "Invalid stock code(fist letters).");
    $v->isOk($comm, "string", 0, 255, "Invalid Comments.");
    $v->isOk($docref, "string", 0, 20, "Invalid Document Reference No.");
    $v->isOk($ordno, "num", 0, 20, "Invalid sales order number.");
    $v->isOk($chrgvat, "string", 1, 4, "Invalid charge vat option.");
    $v->isOk($terms, "num", 1, 20, "Invalid terms.");
    $v->isOk($salespn, "string", 1, 255, "Invalid sales person.");
    $v->isOk($o_day, "num", 1, 2, "Invalid Invoice Date day.");
    $v->isOk($o_month, "num", 1, 2, "Invalid Invoice Date month.");
    $v->isOk($o_year, "num", 1, 5, "Invalid Invoice Date year.");
    $odate = $o_year . "-" . $o_month . "-" . $o_day;
    if (!checkdate($o_month, $o_day, $o_year)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($traddisc, "float", 0, 20, "Invalid Trade Discount.");
    if ($traddisc > 100) {
        $v->isOk($traddisc, "float", 0, 0, "Error : Trade Discount cannot be more than 100 %.");
    }
    $v->isOk($delchrg, "float", 0, 20, "Invalid Delivery Charge.");
    $v->isOk($SUBTOT, "float", 0, 20, "Invalid Delivery Charge.");
    # used to generate errors
    $error = "asa@";
    # check if duplicate serial number selected, remove blanks
    if (isset($sernos)) {
        if (!ext_isUnique(ext_remBlnk($sernos))) {
            $v->isOk($error, "num", 0, 0, "Error : Serial Numbers must be unique per line item.");
        }
    }
    # check is serai no was selected
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            # check if serial is selected
            if (ext_isSerial("stock", "stkid", $stkid) && !isset($sernos[$keys])) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            } elseif (ext_isSerial("stock", "stkid", $stkid) && !(strlen($sernos[$keys]) > 0)) {
                $v->isOk($error, "num", 0, 0, "Error : Missing serial number for product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check quantities
    if (isset($qtys)) {
        foreach ($qtys as $keys => $qty) {
            $discp[$keys] += 0;
            $disc[$keys] += 0;
            $v->isOk($qty, "float", 1, 15, "Invalid Quantity for product number : <b>" . ($keys + 1) . "</b>");
            $v->isOk($disc[$keys], "float", 0, 20, "Invalid Discount for product number : <b>" . ($keys + 1) . "</b>.");
            if ($disc[$keys] > $unitcost[$keys]) {
                $v->isOk($disc[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than the unitcost.");
            }
            $v->isOk($discp[$keys], "float", 0, 20, "Invalid Discount Percentage for product number : <b>" . ($keys + 1) . "</b>.");
            if ($discp[$keys] > 100) {
                $v->isOk($discp[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than 100 %.");
            }
            $unitcost[$keys] += 0;
            $cunitcost[$keys] += 0;
            $v->isOk($unitcost[$keys], "float", 1, 20, "Invalid Unit Price for product number : <b>" . ($keys + 1) . "</b>.");
            $v->isOk($cunitcost[$keys], "float", 1, 20, "Invalid Unit Price for product number : <b>" . ($keys + 1) . "</b>.");
            if ($qty < 1) {
                $v->isOk($qty, "num", 0, 0, "Error : Item Quantity must be at least one. Product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check whids
    if (isset($whids)) {
        foreach ($whids as $keys => $whid) {
            $v->isOk($whid, "num", 1, 10, "Invalid Store number, please enter all details.");
        }
    }
    # check stkids
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            $v->isOk($stkid, "num", 1, 10, "Invalid Stock number, please enter all details.");
        }
    }
    # check amt
    if (isset($amt)) {
        foreach ($amt as $keys => $amount) {
            $v->isOk($amount, "float", 1, 20, "Invalid  Amount, please enter all details.");
        }
    }
    # display errors, if any
    $err = "";
    if ($v->isError()) {
        $errors = $v->getErrors();
        foreach ($errors as $e) {
            $err .= "<li class='err'>" . $e["msg"] . "</li>";
        }
        return details($_POST, $err);
    }
    # Get invoice info
    db_connect();
    $sql = "SELECT * FROM invoices WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $invRslt = db_exec($sql) or errDie("Unable to get invoice information");
    if (pg_numrows($invRslt) < 1) {
        return "<li>- Invoice Not Found</li>";
    }
    $inv = pg_fetch_array($invRslt);
    $inv['traddisc'] = $traddisc;
    $inv['chrgvat'] = $chrgvat;
    # check if invoice has been printed
    if ($inv['printed'] == "y") {
        $error = "<li class='err'> Error : Invoice number <b>{$invid}</b> has already been printed.</li>";
        $error .= "<p><input type='button' onClick='JavaScript:history.back();' value='&laquo; Correct submission'>";
        return $error;
    }
    db_connect();
    if (isset($printdel)) {
        $Sl = "SELECT * FROM settings WHERE constant='Delivery Note'";
        $Ri = db_exec($Sl) or errDie("Unable to get settings.");
        if (pg_num_rows($Ri) < 1) {
            $Sl = "INSERT INTO settings (constant,value,div) VALUES ('Delivery Note','Yes','" . USER_DIV . "')";
            $Ri = db_exec($Sl);
        } else {
            $Sl = "UPDATE settings SET value='Yes' WHERE constant='Delivery Note' AND div='" . USER_DIV . "'";
            $Ri = db_exec($Sl);
        }
    } else {
        $Sl = "UPDATE settings SET value='No' WHERE constant='Delivery Note' AND div='" . USER_DIV . "'";
        $Ri = db_exec($Sl);
    }
    # Get selected customer info
    db_connect();
    $sql = "SELECT * FROM customers WHERE cusnum = '{$cusnum}' AND div = '" . USER_DIV . "'";
    $custRslt = db_exec($sql) or errDie("Unable to get customer information");
    if (pg_numrows($custRslt) < 1) {
        $sql = "SELECT * FROM inv_data WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $custRslt = db_exec($sql) or errDie("Unable to get customer information data");
        $cust = pg_fetch_array($custRslt);
        $cust['cusname'] = $cust['customer'];
        $cust['surname'] = "";
        $cust['addr1'] = "";
        # currency
        $currs = getSymbol($inv['fcid']);
    } else {
        $cust = pg_fetch_array($custRslt);
        # If customer was just selected/changed, get the following
        if ($inv['cusnum'] != $cusnum) {
            $traddisc = $cust['traddisc'];
            $terms = $cust['credterm'];
            $xrate = getRate($cust['fcid']);
        }
        # currency
        $currs = getSymbol($cust['fcid']);
    }
    # get department
    db_conn("exten");
    $sql = "SELECT * FROM departments WHERE deptid = '{$inv['deptid']}' AND div = '" . USER_DIV . "'";
    $deptRslt = db_exec($sql);
    if (pg_numrows($deptRslt) < 1) {
        $dept['deptname'] = "<i class=err>Not Found</i>";
    } else {
        $dept = pg_fetch_array($deptRslt);
    }
    # fix those nasty zeros
    $xrate += 0;
    if ($xrate == 0) {
        $xrate = 1;
    }
    $traddisc += 0;
    $delchrg += 0;
    $vatamount = 0;
    $showvat = TRUE;
    # insert invoice to DB
    db_connect();
    # begin updating
    pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
    /* -- Start remove old items -- */
    # get selected stock in this invoice
    $sql = "SELECT * FROM inv_items  WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $stktRslt = db_exec($sql);
    while ($stkt = pg_fetch_array($stktRslt)) {
        # update stock(alloc + qty)
        $sql = "UPDATE stock SET alloc = (alloc - '{$stkt['qty']}')  WHERE stkid = '{$stkt['stkid']}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
        if (strlen($stkt['serno']) > 0) {
            ext_unresvSer($stkt['serno'], $stkt['stkid']);
        }
    }
    # remove old items
    $sql = "DELETE FROM inv_items WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice items in Cubit.", SELF);
    /* -- End remove old items -- */
    $taxex = 0;
    if (isset($qtys)) {
        foreach ($qtys as $keys => $value) {
            if (isset($remprod) && in_array($keys, $remprod)) {
                // 				if(isset($remprod)){
                // 					if(in_array($keys, $remprod)){
                // 						# skip product (wonder if $keys still align)
                // 						$amt[$keys] = 0;
                // 						continue;
                // 					}else{
                // 						# get selamt from selected stock
                // 						$sql = "SELECT * FROM stock WHERE stkid = '$stkids[$keys]' AND div = '".USER_DIV."'";
                // 						$stkRslt = db_exec($sql);
                // 						$stk = pg_fetch_array($stkRslt);
                //
                // 						$t=$cunitcost[$keys];
                //
                // 						# Calculate the unitcost
                // 						if($cunitcost[$keys] > 0 && $unitcost[$keys] == 0){
                // 							$unitcost[$keys] = ($cunitcost[$keys] * $xrate);
                // 						}else{
                // 							$cunitcost[$keys] = ($unitcost[$keys]/$xrate);
                // 						}
                //
                // 						# Calculate the Discount discount
                // 						if($disc[$keys] < 1){
                // 							if($discp[$keys] > 0){
                // 								$disc[$keys] = (($discp[$keys]/100) * $t);
                // 							}
                // 						}else{
                // 							$discp[$keys] = (($disc[$keys] * 100) / $t);
                // 						}
                //
                // 						# Calculate amount
                // 						$funitcost[$keys] = $unitcost[$keys];
                // 						$famt[$keys] = ($qtys[$keys] * ($funitcost[$keys]));
                //
                // 						# Calculate amount
                // 						// $amt[$keys] = ($qtys[$keys] * ($unitcost[$keys] - $disc[$keys]));
                // 						$unitcost[$keys] = sprint($funitcost[$keys]/$xrate);
                // 						$amt[$keys] = sprint($famt[$keys]/$xrate-($disc[$keys]));
                //
                // 						$Sl="SELECT * FROM vatcodes WHERE id='$vatcodes[$keys]'";
                // 						$Ri=db_exec($Sl);
                //
                // 						if(pg_num_rows($Ri)<1) {
                // 							return details($_POST, "<li class=err>Please select the vatcode for all your items.</li>");
                // 						}
                // 						$vd=pg_fetch_array($Ri);
                //
                // 						# Check Tax Excempt
                // 						if($stk['exvat'] == 'yes'||$vd['zero']=="Yes"){
                // 							$taxex += $amt[$keys];
                // 						}
                //
                // 						# insert invoice items
                // 						$sql = "INSERT INTO inv_items(invid, whid, stkid, qty, unitcost, funitcost, amt, famt, disc, discp, serno, div,vatcode,del) VALUES('$invid', '$whids[$keys]', '$stkids[$keys]', '$qtys[$keys]', '$unitcost[$keys]', '$funitcost[$keys]', '$amt[$keys]', '$famt[$keys]', '$disc[$keys]', '$discp[$keys]', '$sernos[$keys]', '".USER_DIV."','$vatcodes[$keys]','0')";
                // 						$rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.",SELF);
                //
                // 						if(strlen($stkt['serno']) > 0)
                // 							ext_resvSer($stkt['serno'], $stk['stkid']);
                //
                // 						# update stock(alloc + qty)
                // 						$sql = "UPDATE stock SET alloc = (alloc + '$qtys[$keys]') WHERE stkid = '$stkids[$keys]' AND div = '".USER_DIV."'";
                // 						$rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.",SELF);
                // 					}
            } else {
                # Get selamt from selected stock
                $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $stkRslt = db_exec($sql);
                $stk = pg_fetch_array($stkRslt);
                /*# Calculate the unitcost
                		if($cunitcost[$keys] > 0 && $unitcost[$keys] == 0){
                			$unitcost[$keys] = ($cunitcost[$keys] * $xrate);
                		}else{
                			$cunitcost[$keys] = ($unitcost[$keys]/$xrate);
                		}*/
                $t = $cunitcost[$keys];
                # Calculate the unitcost
                if ($unitcost[$keys] > 0 && $cunitcost[$keys] == 0) {
                    $cunitcost[$keys] = $unitcost[$keys] / $xrate;
                } else {
                    $unitcost[$keys] = $cunitcost[$keys] * $xrate;
                }
                # Calculate the Discount discount
                if ($disc[$keys] < 1) {
                    if ($discp[$keys] > 0) {
                        $disc[$keys] = $discp[$keys] / 100 * $t;
                    }
                } else {
                    $discp[$keys] = $disc[$keys] * 100 / $t;
                }
                if ($xrate < 1) {
                    $xrate = 1;
                }
                //$disc[$keys]=$disc[$keys]*$xrate;
                # Calculate amount
                $funitcost[$keys] = $unitcost[$keys];
                $famt[$keys] = $qtys[$keys] * $funitcost[$keys];
                //$famt[$keys] = ($qtys[$keys] * ($funitcost[$keys] - $disc[$keys]));
                # Calculate amount
                // $amt[$keys] = ($qtys[$keys] * ($unitcost[$keys] - $disc[$keys]));
                $unitcost[$keys] = sprint($funitcost[$keys] / $xrate);
                $amt[$keys] = sprint($famt[$keys] / $xrate - $disc[$keys]);
                //$amt[$keys] = sprint($famt[$keys]/$xrate);
                $Sl = "SELECT * FROM vatcodes WHERE id='{$vatcodes[$keys]}'";
                $Ri = db_exec($Sl);
                if (pg_num_rows($Ri) < 1) {
                    return details($_POST, "<li class='err'>Please select the vatcode for all your items.</li>");
                }
                $vd = pg_fetch_array($Ri);
                if ($vd['zero'] == "Yes") {
                    $excluding = "y";
                } else {
                    $excluding = "";
                }
                if (TAX_VAT != $vd['vat_amount'] and $vd['vat_amount'] != "0.00") {
                    $showvat = FALSE;
                }
                $vr = vatcalc($amt[$keys], $inv['chrgvat'], $excluding, $inv['traddisc'], $vd['vat_amount']);
                $vrs = explode("|", $vr);
                $ivat = $vrs[0];
                $iamount = $vrs[1];
                $vatamount += $ivat;
                # Check Tax Excempt
                if ($stk['exvat'] == 'yes' || $vd['zero'] == "Yes") {
                    $taxex += $amt[$keys];
                }
                # insert invoice items
                $sql = "\n\t\t\t\t\t\tINSERT INTO inv_items (\n\t\t\t\t\t\t\tinvid, whid, stkid, qty, unitcost, \n\t\t\t\t\t\t\tfunitcost, amt, famt, disc, \n\t\t\t\t\t\t\tdiscp, serno, div, vatcode, del\n\t\t\t\t\t\t) VALUES (\n\t\t\t\t\t\t\t'{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', \n\t\t\t\t\t\t\t'{$funitcost[$keys]}', '{$amt[$keys]}', '{$famt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', \n\t\t\t\t\t\t\t'{$sernos[$keys]}', '" . USER_DIV . "', '{$vatcodes[$keys]}', '0'\n\t\t\t\t\t\t)";
                $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
                if (strlen($sernos[$keys]) > 0) {
                    ext_resvSer($sernos[$keys], $stk['stkid']);
                }
                # update stock(alloc + qty)
                $sql = "UPDATE stock SET alloc = (alloc + '{$qtys[$keys]}') WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            }
            # everything is set place done button
            $_POST["done"] = " | <input name='doneBtn' type='submit' value='Process'>";
        }
    } else {
        $_POST["done"] = "";
    }
    db_conn('cubit');
    $Sl = "SELECT * FROM vatcodes WHERE id='{$delvat}'";
    $Ri = db_exec($Sl);
    $vd = pg_fetch_array($Ri);
    // 		if(pg_num_rows($Ri)>0) {
    // 			$taxex += $delchrg;
    // 		}
    if ($vd['zero'] == "Yes") {
        $excluding = "y";
    } else {
        $excluding = "";
    }
    if (TAX_VAT != $vd['vat_amount'] and $vd['vat_amount'] != "0.00") {
        $showvat = FALSE;
    }
    $_POST['showvat'] = $showvat;
    $vr = vatcalc($delchrg, $inv['chrgvat'], $excluding, $inv['traddisc'], $vd['vat_amount']);
    $vrs = explode("|", $vr);
    $ivat = $vrs[0];
    $iamount = $vrs[1];
    $vatamount += $ivat;
    /* --- ----------- Clac --------------------- */
    ##----------------------NEW----------------------
    $sub = 0.0;
    if (isset($amt)) {
        $sub = sprint(array_sum($amt));
    }
    $VATP = TAX_VAT;
    if ($chrgvat == "exc") {
        $taxex = sprint($taxex - $taxex * $traddisc / 100);
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        //	$VAT=sprint(($subtotal-$taxex)*$VATP/100);
        $VAT = $vatamount;
        $SUBTOT = $sub;
        $TOTAL = sprint($subtotal + $VAT);
        $delexvat = sprint($delchrg);
    } elseif ($chrgvat == "inc") {
        $ot = $taxex;
        $taxex = sprint($taxex - $taxex * $traddisc / 100);
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        //$VAT=sprint(($subtotal-$taxex)*$VATP/(100+$VATP));
        $VAT = $vatamount;
        $SUBTOT = sprint($sub);
        $TOTAL = sprint($subtotal);
        $delexvat = sprint($delchrg);
        $traddiscmt = sprint($traddiscmt);
    } else {
        $subtotal = sprint($sub + $delchrg);
        $traddiscmt = sprint($subtotal * $traddisc / 100);
        $subtotal = sprint($subtotal - $traddiscmt);
        $VAT = sprint(0);
        $SUBTOT = $sub;
        $TOTAL = $subtotal;
        $delexvat = sprint($delchrg);
    }
    /* --- ----------- Clac --------------------- */
    ##----------------------END----------------------
    /* --- ----------- Clac ---------------------
    
    		# calculate subtot
    		$SUBTOT = 0.00;
    		if(isset($amt))
    			$SUBTOT = array_sum($amt);
    
    		$SUBTOT -= $taxex;
    
    		# duplicate
    		$SUBTOTAL = $SUBTOT;
    
    		$VATP = TAX_VAT;
    		if($chrgvat == "exc"){
    			$SUBTOTAL = $SUBTOTAL;
    			$delexvat= ($delchrg);
    		}elseif($chrgvat == "inc"){
    			$SUBTOTAL = sprint(($SUBTOTAL * 100)/(100 + $VATP));
    			$delexvat = sprint(($delchrg * 100)/($VATP + 100));
    		}else{
    			$SUBTOTAL = ($SUBTOTAL);
    			$delexvat = ($delchrg);
    		}
    
    		$SUBTOT = $SUBTOTAL;
    		$EXVATTOT = $SUBTOT;
    		$EXVATTOT += $delexvat;
    
    		# Minus trade discount from taxex
    		if($traddisc > 0){
    			$traddiscmtt = (($traddisc/100) * $taxex);
    		}else{
    			$traddiscmtt = 0;
    		}
    		$taxext = ($taxex - $traddiscmtt);
    
    		if($traddisc > 0) {
    			$traddiscmt = ($EXVATTOT * ($traddisc/100));
    		}else{
    			$traddiscmt = 0;
    		}
    		$EXVATTOT -= $traddiscmt;
    		// $EXVATTOT -= $taxex;
    
    		$traddiscmt = sprint($traddiscmt  + $traddiscmtt);
    
    		if($chrgvat != "nov"){
    			$VAT = sprint($EXVATTOT * ($VATP/100));
    		}else{
    			$VAT = 0;
    		}
    
    		$TOTAL = sprint($EXVATTOT + $VAT + $taxext);
    		$SUBTOT += $taxex;
    
    /* --- ----------- Clac --------------------- */
    $FTOTAL = sprint($TOTAL * $xrate);
    /* --- ----------- Clac --------------------- */
    # insert invoice to DB
    $sql = "\n\t\t\tUPDATE invoices \n\t\t\tSET delvat='{$delvat}', cusnum = '{$cusnum}', deptname = '{$dept['deptname']}', cusacc = '{$cust['accno']}', \n\t\t\t\tcusname = '{$cust['cusname']}', surname = '{$cust['surname']}', cusaddr = '{$cust['addr1']}', \n\t\t\t\tcusvatno = '{$cust['vatnum']}', cordno = '{$cordno}', ordno = '{$ordno}', chrgvat = '{$chrgvat}', docref = '{$docref}', \n\t\t\t\tterms = '{$terms}', salespn = '{$salespn}', fcid = '{$cust['fcid']}', currency = '{$currs['symbol']}', xrate = '{$xrate}', \n\t\t\t\todate = '{$odate}', traddisc = '{$traddisc}', delchrg = '{$delchrg}', subtot = '{$SUBTOT}', vat = '{$VAT}', \n\t\t\t\ttotal = '{$TOTAL}', balance = '{$FTOTAL}', fbalance = '{$TOTAL}', comm = '{$comm}', location = '{$cust['location']}', \n\t\t\t\tserd = 'y', discount='{$traddiscmt}', delivery='{$delexvat}' \n\t\t\tWHERE invid = '{$invid}'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice in Cubit.", SELF);
    # remove old data
    $sql = "DELETE FROM inv_data WHERE invid='{$invid}'  AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice data in Cubit.", SELF);
    # pu in new data
    $sql = "INSERT INTO inv_data(invid, dept, customer, addr1, div) VALUES('{$invid}', '{$dept['deptname']}', '{$cust['cusname']} {$cust['surname']}', '{$cust['addr1']}', '" . USER_DIV . "')";
    $rslt = db_exec($sql) or errDie("Unable to insert invoice data to Cubit.", SELF);
    # commit updating
    pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
    if (strlen($bar) > 0) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return details($_POST, "<a href='pos-set.php'>Please set the point of sale setting by clicking here.</a>");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($bar, strlen($bar) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return details($_POST, "The code you selected is invalid");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $bar, 'stock');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "\n\t\t\t\tINSERT INTO inv_items (\n\t\t\t\t\tinvid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div, del\n\t\t\t\t) VALUES (\n\t\t\t\t\t'{$invid}', '{$s['whid']}', '{$stid}', '1', '{$s['selamt']}', '{$s['selamt']}', '0', '0', '{$bar}', '" . USER_DIV . "', '0'\n\t\t\t\t)";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "UPDATE " . $tab . " SET active = 'no' WHERE code = '{$bar}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        } else {
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = ext_dbget('stock', 'bar', $bar, 'stkid');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "\n\t\t\t\tINSERT INTO inv_items (\n\t\t\t\t\tinvid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div, del\n\t\t\t\t) VALUES (\n\t\t\t\t\t'{$invid}', '{$s['whid']}', '{$stid}', '1', '{$s['selamt']}', '{$s['selamt']}', '0', '0','{$bar}', '" . USER_DIV . "', '0'\n\t\t\t\t)";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    /* --- Start button Listeners --- */
    if (isset($doneBtn)) {
        # Check if stock was selected(yes = put done button)
        db_connect();
        $sql = "SELECT stkid FROM inv_items WHERE invid = '{$inv['invid']}' AND div = '" . USER_DIV . "'";
        $crslt = db_exec($sql);
        if (pg_numrows($crslt) < 1) {
            $error = "<li class='err'> Error : Invoice number has no items.</li>";
            return details($_POST, $error);
        }
        # Insert quote to DB
        $sql = "UPDATE invoices SET done = 'y' WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update invoice status in Cubit.", SELF);
        $Sl = "SELECT * FROM settings WHERE constant='Delivery Note'";
        $Ri = db_exec($Sl) or errDie("Unable to get settings.");
        $data = pg_fetch_array($Ri);
        if ($data['value'] == "Yes") {
            # Print the invoice
            $OUTPUT = "<script>nhprinter('invoice-delnote.php?invid={$invid}','Delivery Note');printer('intinvoice-print.php?invid={$invid}');move('main.php');</script>";
        } else {
            # Print the invoice
            $OUTPUT = "<script>printer('intinvoice-print.php?invid={$invid}');move('main.php');</script>";
        }
        require "template.php";
    } elseif (isset($saveBtn)) {
        // Final Laytout
        $write = "\n\t\t\t<table " . TMPL_tblDflts . ">\n\t\t\t\t<tr>\n\t\t\t\t\t<th>New International Invoice Saved</th>\n\t\t\t\t</tr>\n\t\t\t\t<tr class='" . bg_class() . "'>\n\t\t\t\t\t<td>International Invoice for customer <b>{$cust['cusname']} {$cust['surname']}</b> has been saved.</td>\n\t\t\t\t</tr>\n\t\t\t</table>\n\t\t\t<p>\n\t\t\t<table " . TMPL_tblDflts . ">\n\t\t\t\t<tr>\n\t\t\t\t\t<th>Quick Links</th>\n\t\t\t\t</tr>\n\t\t\t\t<tr class='" . bg_class() . "'>\n\t\t\t\t\t<td><a href='invoice-view.php'>View Invoices</a></td>\n\t\t\t\t</tr>\n\t\t\t\t<script>document.write(getQuicklinkSpecial());</script>\n\t\t\t</table>";
        return $write;
    } else {
        if (isset($wtd)) {
            $_POST['wtd'] = $wtd;
        }
        if (strlen($ria) > 0) {
            $_POST['ria'] = $ria;
        }
        return details($_POST);
    }
}
function write($_POST)
{
    #get vars
    foreach ($_POST as $key => $value) {
        ${$key} = $value;
    }
    # validate input
    require_lib("validate");
    $v = new validate();
    $v->isOk($client, "string", 0, 20, "Invalid Customer.");
    $v->isOk($invid, "num", 1, 20, "Invalid Invoice Number.");
    $v->isOk($cordno, "string", 0, 20, "Invalid Customer Order Number.");
    $v->isOk($comm, "string", 0, 255, "Invalid Comments.");
    $v->isOk($ordno, "num", 0, 20, "Invalid sales order number.");
    $v->isOk($chrgvat, "string", 1, 4, "Invalid charge vat option.");
    $v->isOk($salespn, "string", 1, 255, "Invalid sales person.");
    $v->isOk($oday, "num", 1, 2, "Invalid Invoice Date day.");
    $v->isOk($omon, "num", 1, 2, "Invalid Invoice Date month.");
    $v->isOk($oyear, "num", 1, 5, "Invalid Invoice Date year.");
    $odate = $oyear . "-" . $omon . "-" . $oday;
    if (!checkdate($omon, $oday, $oyear)) {
        $v->isOk($odate, "num", 1, 1, "Invalid Invoice Date.");
    }
    $v->isOk($traddisc, "float", 0, 20, "Invalid Trade Discount.");
    if ($traddisc > 100) {
        $v->isOk($traddisc, "float", 0, 0, "Error : Trade Discount cannot be more than 100 %.");
    }
    $v->isOk($delchrg, "float", 0, 20, "Invalid Delivery Charge.");
    $v->isOk($SUBTOT, "float", 0, 20, "Invalid Delivery Charge.");
    # used to generate errors
    $error = "asa@";
    # check quantities
    if (isset($qtys)) {
        foreach ($qtys as $keys => $qty) {
            $v->isOk($qty, "num", 1, 10, "Invalid Quantity for product number : <b>" . ($keys + 1) . "</b>");
            $v->isOk($disc[$keys], "float", 0, 20, "Invalid Discount for product number : <b>" . ($keys + 1) . "</b>.");
            if ($disc[$keys] > $unitcost[$keys]) {
                $v->isOk($disc[$keys], "float", 0, 0, "Error : Discount for product number : <b>" . ($keys + 1) . "</b> is more than the unitcost.");
            }
            $v->isOk($discp[$keys], "float", 0, 20, "Invalid Discount Percentage for product number : <b>" . ($keys + 1) . "</b>.");
            $v->isOk($unitcost[$keys], "float", 1, 20, "Invalid Unit Price for product number : <b>" . ($keys + 1) . "</b>.");
            if ($qty < 1) {
                $v->isOk($qty, "num", 0, 0, "Error : Item Quantity must be at least one. Product number : <b>" . ($keys + 1) . "</b>");
            }
        }
    }
    # check whids
    if (isset($whids)) {
        foreach ($whids as $keys => $whid) {
            $v->isOk($whid, "num", 1, 10, "Invalid Store number, please enter all details.");
        }
    }
    # check stkids
    if (isset($stkids)) {
        foreach ($stkids as $keys => $stkid) {
            $v->isOk($stkid, "num", 1, 10, "Invalid Stock number, please enter all details.");
        }
    }
    # check amt
    if (isset($amt)) {
        foreach ($amt as $keys => $amount) {
            $v->isOk($amount, "float", 1, 20, "Invalid Amount, please enter all details.");
        }
    }
    # display errors, if any
    $err = "";
    if ($v->isError()) {
        $errors = $v->getErrors();
        foreach ($errors as $e) {
            $err .= "<li class=err>" . $e["msg"];
        }
        return details($_POST, $err);
    }
    if (strlen($client) < 1) {
        $client = "Cash Sale";
    }
    $_POST['client'] = $client;
    # Get invoice info
    db_connect();
    $sql = "SELECT * FROM pinvoices WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $invRslt = db_exec($sql) or errDie("Unable to get invoice information");
    if (pg_numrows($invRslt) < 1) {
        return "<li>- Invoice Not Found</li>";
    }
    $inv = pg_fetch_array($invRslt);
    # check if invoice has been printed
    if ($inv['printed'] == "y") {
        $error = "<li class=err> Error : Invoice number <b>{$invid}</b> has already been printed.";
        $error .= "<p><input type=button onClick='JavaScript:history.back();' value='&laquo; Correct submission'>";
        return $error;
    }
    # get department
    db_conn("exten");
    $sql = "SELECT * FROM departments WHERE deptid = '{$inv['deptid']}' AND div = '" . USER_DIV . "'";
    $deptRslt = db_exec($sql);
    if (pg_numrows($deptRslt) < 1) {
        $dept['deptname'] = "<i class=err>Not Found</i>";
    } else {
        $dept = pg_fetch_array($deptRslt);
    }
    # fix those nasty zeros
    $traddisc += 0;
    $delchrg += 0;
    # insert invoice to DB
    db_connect();
    # Begin updating
    pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
    /* -- Start remove old items -- */
    # get selected stock in this invoice
    $sql = "SELECT * FROM pinv_items  WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $stktRslt = db_exec($sql);
    while ($stkt = pg_fetch_array($stktRslt)) {
        # update stock(alloc + qty)
        $sql = "UPDATE stock SET alloc = (alloc - '{$stkt['qty']}')  WHERE stkid = '{$stkt['stkid']}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
    }
    # remove old items
    $sql = "DELETE FROM pinv_items WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice items in Cubit.", SELF);
    /* -- End remove old items -- */
    $taxex = 0;
    if (isset($qtys)) {
        foreach ($qtys as $keys => $value) {
            if (isset($remprod)) {
                if (in_array($keys, $remprod)) {
                    # skip product (wonder if $keys still align)
                    $amt[$keys] = 0;
                    continue;
                } else {
                    # get selamt from selected stock
                    $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                    $stkRslt = db_exec($sql);
                    $stk = pg_fetch_array($stkRslt);
                    # Calculate the Discount discount
                    if ($disc[$keys] < 1) {
                        if ($discp[$keys] > 0) {
                            $disc[$keys] = $discp[$keys] / 100 * $unitcost[$keys];
                        }
                    } else {
                        $discp[$keys] = $disc[$keys] * 100 / $unitcost[$keys];
                    }
                    # Calculate amount
                    $amt[$keys] = $qtys[$keys] * ($unitcost[$keys] - $disc[$keys]);
                    # Check Tax Excempt
                    if ($stk['exvat'] == 'yes') {
                        $taxex += $amt[$keys];
                    }
                    # insert invoice items
                    $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, div) VALUES('{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}', '{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '" . USER_DIV . "')";
                    $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
                    # update stock(alloc + qty)
                    $sql = "UPDATE stock SET alloc = (alloc + '{$qtys[$keys]}') WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                    $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
                }
            } else {
                # get selamt from selected stock
                $sql = "SELECT * FROM stock WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $stkRslt = db_exec($sql);
                $stk = pg_fetch_array($stkRslt);
                # Calculate the Discount discount
                if ($disc[$keys] < 1) {
                    if ($discp[$keys] > 0) {
                        $disc[$keys] = $discp[$keys] / 100 * $unitcost[$keys];
                    }
                } else {
                    $discp[$keys] = $disc[$keys] * 100 / $unitcost[$keys];
                }
                # Calculate amount
                $amt[$keys] = $qtys[$keys] * ($unitcost[$keys] - $disc[$keys]);
                # Check Tax Excempt
                if ($stk['exvat'] == 'yes') {
                    $taxex += $amt[$keys];
                }
                # insert invoice items
                $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, div) VALUES('{$invid}', '{$whids[$keys]}', '{$stkids[$keys]}', '{$qtys[$keys]}', '{$unitcost[$keys]}','{$amt[$keys]}', '{$disc[$keys]}', '{$discp[$keys]}', '" . USER_DIV . "')";
                $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
                # update stock(alloc + qty)
                $sql = "UPDATE stock SET alloc = (alloc + '{$qtys[$keys]}') WHERE stkid = '{$stkids[$keys]}' AND div = '" . USER_DIV . "'";
                $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            }
            # everything is set place done button
            $_POST["done"] = " | <input name=doneBtn type=submit value='Done'>";
        }
    } else {
        $_POST["done"] = "";
    }
    /* --- Clac --- */
    # calculate subtot
    if (isset($amt)) {
        $SUBTOT = array_sum($amt);
    } else {
        $SUBTOT = 0.0;
    }
    # Calculate tradediscm
    if ($traddisc > 0) {
        $traddiscm = sprint($traddisc / 100 * $SUBTOT);
    } else {
        $traddiscm = 0.0;
    }
    /* Trade discount fix */
    # Calculate tradediscm
    if ($traddisc > 0) {
        $traddiscmt = sprint($traddisc / 100 * $taxex);
    } else {
        $traddiscmt = 0.0;
    }
    $taxex -= $traddiscmt;
    /* Trade discount fix */
    # minus discount
    # $SUBTOT -= $disc; --> already minused
    # duplicate
    $SUBTOTAL = $SUBTOT;
    # minus trade discount
    $SUBTOTAL -= $traddiscm;
    # add del charge
    $SUBTOTAL += $delchrg;
    # if vat must be charged
    if ($chrgvat == "yes") {
        $VATP = TAX_VAT;
        $VAT = sprint($VATP / 100 * ($SUBTOTAL - $taxex));
    } else {
        $VATP = 0;
        $VAT = "0.00";
    }
    # total
    $TOTAL = sprint($SUBTOTAL + $VAT);
    /* --- End Clac --- */
    # insert invoice to DB
    $sql = "UPDATE pinvoices SET deptname = '{$dept['deptname']}', cusname = '{$client}', cordno = '{$cordno}', ordno = '{$ordno}', chrgvat = '{$chrgvat}', salespn = '{$salespn}',\n\t\todate = '{$odate}', traddisc = '{$traddisc}', delchrg = '{$delchrg}', subtot = '{$SUBTOT}', vat = '{$VAT}', total = '{$TOTAL}', balance = '{$TOTAL}', comm = '{$comm}' WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice in Cubit.", SELF);
    # remove old data
    $sql = "DELETE FROM pinv_data WHERE invid='{$invid}' AND div = '" . USER_DIV . "'";
    $rslt = db_exec($sql) or errDie("Unable to update invoice data in Cubit.", SELF);
    # put in new data
    $sql = "INSERT INTO pinv_data(invid, dept, customer, div) VALUES('{$invid}', '{$dept['deptname']}', '{$client}', '" . USER_DIV . "')";
    $rslt = db_exec($sql) or errDie("Unable to insert invoice data to Cubit.", SELF);
    # commit updating
    pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
    if (strlen($bar) > 0) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return details($_POST, "<a href='pos-set.php'>Please set the point of sale setting by clicking here.</a>");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($bar, strlen($bar) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return details($_POST, "The code you selected is invalid");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $bar, 'stock');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$bar}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "UPDATE " . $tab . " SET active = 'no' WHERE code = '{$bar}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        } else {
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = ext_dbget('stock', 'bar', $bar, 'stkid');
            if (!($stid > 0)) {
                return details($_POST, "The bar code you selected is not in the system or is not available.");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp,ss, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$bar}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    /* --- Start button Listeners --- */
    if (isset($doneBtn)) {
        # check if stock was selected(yes = put done button)
        db_connect();
        $sql = "SELECT stkid FROM pinv_items WHERE invid = '{$inv['invid']}' AND div = '" . USER_DIV . "'";
        $crslt = db_exec($sql);
        if (pg_numrows($crslt) < 1) {
            $error = "<li class=err> Error : Invoice number has no items.";
            return details($_POST, $error);
        }
        # insert quote to DB
        $sql = "UPDATE pinvoices SET done = 'y' WHERE invid = '{$invid}' AND div = '" . USER_DIV . "'";
        $rslt = db_exec($sql) or errDie("Unable to update invoice status in Cubit.", SELF);
        # print the invoice
        header("Location:pos-invoice-print.php?invid={$invid}");
    } elseif (isset($saveBtn)) {
        // Final Laytout
        $write = "\n\t\t<table border=0 cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\n\t\t\t<tr><th>New Invoice Saved</th></tr>\n\t\t\t<tr class='bg-even'><td>Invoice for customer <b>{$client}</b> has been saved.</td></tr>\n\t\t</table>\n\t\t<p>\n\t\t<table border=0 cellpadding='" . TMPL_tblCellPadding . "' cellspacing='" . TMPL_tblCellSpacing . "'>\n\t\t\t<tr><th>Quick Links</th></tr>\n\t\t\t<tr class='bg-odd'><td><a href='pos-invoice-new.php'>New Point of Sale Invoice</a></td></tr>\n\t\t\t<tr class='bg-odd'><td><a href='pos-invoice-edit.php'>View Point of Sale Invoices</a></td></tr>\n\t\t\t<script>document.write(getQuicklinkSpecial());</script>\n\t\t</table>";
        return $write;
    } else {
        return details($_POST);
    }
    /* --- End button Listeners --- */
}
function write($_POST)
{
    $Out = "";
    #get & send vars
    foreach ($_POST as $key => $value) {
        ${$key} = $value;
        $Out .= "<input type=hidden name=\${$key} value='{$value}'>";
    }
    $blength = strlen($barcodes);
    $start = 0;
    while ($start < $blength) {
        $value = substr($barcodes, $start, $clength);
        $start = $start + $clength;
        if (strlen($value) == $clength) {
            $bars[] = $value;
        }
    }
    # validate input
    require_lib("validate");
    $v = new validate();
    foreach ($bars as $each) {
        $v->isOk($each, "num", 1, $clength, "Invalid bar code.");
    }
    # display errors, if any
    if ($v->isError()) {
        $errors = "";
        $Errors = $v->getErrors();
        foreach ($Errors as $e) {
            $errors .= "<li class=err>" . $e["msg"] . "</li>";
        }
        $errors .= "<input type=hidden name=errors value='{$errors}'>";
        return read_bars($_POST, $errors);
    }
    #we can only add as many barcodes as there is stock, so find the max and reduce the array if it exceeds the max
    // 	pglib_transaction("begin");
    //
    // 	$Sl = "SELECT stkcod,stkdes,units,alloc FROM stock WHERE stkid='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to view stock");
    // 	if(pg_numrows($Rs)<1) {return "Invalid Stock id.";}
    // 	$St = pg_fetch_array($Rs);
    // 	$Av=$St['units']-$St['alloc'];
    //
    // 	$i=0;
    //
    // 	$Sl = "SELECT code FROM ss0 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss1 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss2 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss3 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss4 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss5 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss6 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss7 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss8 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	$Sl = "SELECT code FROM ss9 WHERE stock='$id' AND div = '".USER_DIV."'";
    // 	$Rs = db_exec ($Sl) or errDie ("Unable to retrieve barcodes from db");
    // 	while($Tp = pg_fetch_array($Rs)){$i++;}
    //
    // 	pglib_transaction("commit");
    //
    // 	$Wob=$Av-$i;
    // 	if ($Wob>0){
    // 		#doesnt exceed, do nothing
    // 		foreach($bars as $each){
    // 			$bars2[] = $each;
    // 		}
    // 	}else {
    // 		$bars2 = array ();
    // 		for($count = 0;  $count <= $Wob; $count++){
    // 			$bars2[] = $bars[$count];
    // 		}
    // 	}
    db_conn("cubit");
    foreach ($bars as $each) {
        $Sl = "SELECT * FROM possets WHERE div = '" . USER_DIV . "'";
        $Rs = db_exec($Sl) or errDie("Unable to add supplier to the system.", SELF);
        if (pg_numrows($Rs) < 1) {
            return read_bars($_POST, "<li class='err'>Please go set the point of sale settings under the stock settings</li>");
        }
        $Dets = pg_fetch_array($Rs);
        if ($Dets['opt'] == "No") {
            switch (substr($each, strlen($each) - 1, 1)) {
                case "0":
                    $tab = "ss0";
                    break;
                case "1":
                    $tab = "ss1";
                    break;
                case "2":
                    $tab = "ss2";
                    break;
                case "3":
                    $tab = "ss3";
                    break;
                case "4":
                    $tab = "ss4";
                    break;
                case "5":
                    $tab = "ss5";
                    break;
                case "6":
                    $tab = "ss6";
                    break;
                case "7":
                    $tab = "ss7";
                    break;
                case "8":
                    $tab = "ss8";
                    break;
                case "9":
                    $tab = "ss9";
                    break;
                default:
                    return read_bars($_POST, "<li class='err'>The code you selected is invalid.</li>");
            }
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = barext_dbget($tab, 'code', $each, 'stock');
            if (!($stid > 0)) {
                return read_bars($_POST, "<li class='err'>The bar code you selected is not in the system or is not available.</li>");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, ss, vatcode, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$each}', '{$s['vatcode']}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            $Sl = "UPDATE " . $tab . " SET active = 'no' WHERE code = '{$each}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        } else {
            db_conn('cubit');
            pglib_transaction("BEGIN") or errDie("Unable to start a database transaction.", SELF);
            $stid = ext_dbget('stock', 'bar', $each, 'stkid');
            if (!($stid > 0)) {
                return read_bars($_POST, "<li class='err'>The bar code you selected is not in the system or is not available.</li>");
            }
            $Sl = "SELECT * FROM stock WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $Rs = db_exec($Sl);
            $s = pg_fetch_array($Rs);
            # put scanned-in product into invoice db
            $sql = "INSERT INTO pinv_items(invid, whid, stkid, qty, unitcost, amt, disc, discp, ss, vatcode, div) VALUES('{$invid}', '{$s['whid']}', '{$stid}', '1','{$s['selamt']}','{$s['selamt']}','0','0','{$each}', '{$s['vatcode']}', '" . USER_DIV . "')";
            $rslt = db_exec($sql) or errDie("Unable to insert invoice items to Cubit.", SELF);
            # update stock(alloc + qty)
            $sql = "UPDATE stock SET alloc = (alloc + '1') WHERE stkid = '{$stid}' AND div = '" . USER_DIV . "'";
            $rslt = db_exec($sql) or errDie("Unable to update stock to Cubit.", SELF);
            pglib_transaction("COMMIT") or errDie("Unable to commit a database transaction.", SELF);
        }
    }
    #print and reload parent window
    //opener.document.form.submit()
    return "\n\t\t<script>\n\t\t\twindow.close();\n\t\t\topener.document.location='pos-invoice-new.php?invid={$invid}&cont=yes'\n\t\t</script>";
}