public static function addtoNewsLetterSubscriptionList($email = '')
 {
     global $tableprefix;
     if (!empty($email)) {
         // Check email address exists in subscribers list
         $resCat = DbHelper::execute("SELECT nId FROM " . $tableprefix . "newsletter_subscribers WHERE vEmail ='" . mysql_real_escape_string($email) . "' ");
         $data = DbHelper::fetchOne($resCat);
         // If alraedy exists return false
         if ($data) {
             $emailSubscribed = 'exists';
         } else {
             // Insert Email id to subscriberlist
             $resInsert = DbHelper::execute("INSERT INTO " . $tableprefix . "newsletter_subscribers\n                                                (vEmail)VALUES('" . mysql_real_escape_string($email) . "')");
             $constantcontactSettings = getconstantcontactSettings();
             $_SESSION['constantaction'] = 'Add Email';
             $userinfo = array();
             $userinfo['emailAddress'] = mysql_real_escape_string($email);
             $userinfo['firstName'] = '';
             $userinfo['lastName'] = '';
             $userinfo['lists'] = array($constantcontactSettings['constantcontactlistId']);
             $_SESSION['constantparam']['redirecturl'] = SITE_URL . '/checkout.php';
             //header("location:".$constantcontactSettings['verificationURL']);
             $emailSubscribed = 'added';
         }
         return $emailSubscribed;
     }
 }
             $_SESSION['constantparam']['redirecturl'] = SITE_URL . '/index.php';
             header("location:" . $constantcontactSettings['verificationURL']);
             exit;
         }
         //header("Location:index.php");
         //exit;
     }
 } else {
     // End
     if ($wishMessage == 'Product added successfully!') {
         header("Location:" . SITE_URL . "/mywishlist.php");
         exit;
     }
     if ($check_news == 'Y') {
         $_SESSION['constantaction'] = 'Add Email';
         $constantcontactSettings = getconstantcontactSettings();
         $userinfo = array();
         $userinfo['emailAddress'] = $txtEmail;
         $userinfo['firstName'] = $txtFirstName;
         $userinfo['lastName'] = $txtLastName;
         $userinfo['lists'] = array($constantcontactSettings['constantcontactlistId']);
         // print_r($userinfo);exit;
         $_SESSION['constantparam']['data'] = $userinfo;
         $_SESSION['constantparam']['redirecturl'] = SITE_URL . '/index.php';
         header("location:" . $constantcontactSettings['verificationURL']);
         exit;
     }
     //header("Location:index.php");
 }
 //$message = "Registration successfully completed! Please <a class=links href='login.php'><b>login here</b>.</a>";
 /*----------Multicart2.0 Upgradation---------------*/