Hello,
I read an article on "how to prevent users from submitting a form twice." at the url http://www.4guysfromrolla.com/webtech/100406-1.shtml
I was able to freeze the web page but was not able to unfreeze the web page. I am using PHP with javascript. Nothing happens when my code executes the "unfreeze" js function. I tested this js function and it only worked after I disabled the 2 php header() functions below. The JS unfreeze function just stops working with the php header functions enabled. There were no errors. Only the web page still freezes.
I hope someone can give me advice to help me solve this issue. Thanks in advance.
Below is my code in short version:
<?php
ob_start();
$hearingform = '
<html>
<head>
<style type="text/css">
.....
</style>
<div align="center" id="FreezePane" class="FreezePaneOff">
<div id="InnerFreezePane" class="InnerFreezePane"> </div>
</div>
<script type="text/javascript">
function FreezeScreen(msg) {
scroll(0,0);
var outerPane = document.getElementById("FreezePane");
var innerPane = document.getElementById("InnerFreezePane");
if (outerPane) outerPane.className = "FreezePaneOn";
if (innerPane) innerPane.innerHTML = msg;
}
function unFreezeScreen() {
var outerPane = document.getElementById("FreezePane");
outerPane.className = "FreezePaneOff";
}';
//---------------------------------------------------------
// some code to pull data from the database here...
//---------------------------------------------------------
// unfreeze the webpage
echo '<script type="text/javascript">unFreezeScreen();</script>';
/*send data to an excel file*/
header("Content-type: application/csv");
header("Content-Disposition: attachment; filename=$filename");
echo $data;
exit;
} //END post IF
print $hearingform;
ob_flush();
?>
