/** construct javascript alerts for messages
*
* This constructs a piece of HTML that yields 0 or more
* calles to the javascript alert() function, once per message.
* If no messages need to be displayed an empty string is
* returned.
*
* @param array @messages a collection of message to display via alert()
* @param string $m left margin for increased readability
* @return string generated HTML-code with Javascript or empty string
*/
function get_popups($messages, $m = '')
{
$s = '';
if (!empty($messages)) {
$s .= $m . "<script>\n" . $m . "<!--\n";
foreach ($messages as $message) {
$s .= $m . " " . javascript_alert($message) . "\n";
}
$s .= $m . "-->\n" . $m . "</script>\n";
}
return $s;
}
/** construct the end of the simple HTML-page, closing the full size table
*
* @param string $alert_message (optional) message to show via a javascript alert()
* @see login_page_open()
* @return string the constructed HTML
* @uses javascript_alert()
*/
function login_page_close($alert_message = '')
{
$s = " </td>\n" . " </tr>\n" . " </table>\n";
if (!empty($alert_message)) {
$alert_message = wordwrap($alert_message, MAXIMUM_LINE_LENGTH);
$s .= " <script>\n" . " <!--\n" . " " . javascript_alert($alert_message) . "\n" . " -->\n" . " </script>\n";
}
$s .= " </body>\n" . "</html>\n";
return $s;
}