Greetings all.
This method uses the same php page to handle all ajax requests,and should be saved as "index.php" accordingly. I am not sure of the security implications, but if anything, I feel this is very handy. Also, I hope you find the usage of "serialize()" as useful as I have. This example requires php, and also the scriptaculous library -
http://script.aculo.us/downloads.
<? if ($_POST['indreq']){echo "regresponse[target]Request Recieved:".$_POST['indreq'];} ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Woot for Ajax!</title>
<script src="scripts/prototype.js" type="text/javascript"></script>
<script src="scripts/unittest.js" type="text/javascript"></script>
<script src="scripts/scriptaculous.js" type="text/javascript"></script>
<script type="text/javascript">
window.onload = startfunctions;
function startfunctions()
{$('send').onclick = function() {request();}}
function request()
{new Ajax.Request('index.php', { method: 'post', parameters: { indreq: $('form1').serialize()}, onSuccess: function(p)
{target = p.responseText.split("[target]");$(target[0]).update(target[1]);}})}
</script>
<style type="text/css">
label {font-size:11px;color:#333333;font-family:Arial, Helvetica, sans-serif;}
input[type=text]{border:1px solid #333333;font-size:11px;color:#333333;font-family:Arial, Helvetica, sans-serif;}
input[type=password]{border:1px solid #333333;font-size:11px;color:#333333;font-family:Arial, Helvetica, sans-serif;}
input[type=button]{border:1px solid #333333;font-size:11px;color:#333333;font-family:Arial, Helvetica, sans-serif;background-color:#ffffff;}
#regresponse{color:#003300;font-size:11px;font-family:Arial, Helvetica, sans-serif;}
#error{float:left;height:200px;padding:20px;color:#003300;}
</style>
</head>
<body>
<form id="form1" name="form1" style="width:150px;">
<label>email address:<input type="text" name="email_address" id="email_address" /></label>
<label>desired password:<input type="password" name="password" id="password" /></label>
<label>repeat password:<input type="password" name="password2" id="password2" /></label>
<p><input type="button" name="send" id="send" value="Register" /></p>
</form>
<div id="regresponse" name="regresponse"></div>
</body>
</html>