Endless loop error in php and jQuery contact form

[miranda]

Arrg.I can't spot the endless loop in this contact form. The "thanks" div endlessly prints after the form submission. What am I missing? Is the error php or also jQuery? (In the working file, the JS is included via \[code\]<script type="text/javascript" src="http://stackoverflow.com/questions/3558599/contact.js"></script>\[/code\])Thanks\[code\]<?php if(isset($_POST['submitted'])) {if(trim($_POST['checking']) !== '') {$captchaError = true;} else {if(trim($_POST['email']) === '') {$emailError = 'Please enter a valid email address';$hasError = true;} else if (!eregi("^[A-Z0-9._%-]+@[A-Z0-9._%-]+\.[A-Z]{2,4}$", trim($_POST['email']))) {$emailError = 'That\'s not a valid email address';$hasError = true;} else {$email = trim($_POST['email']);}}if(!isset($hasError)) {$emailTo = 'to email';$subject = 'site email';$body = "$email";$headers = 'From: webmail';mail($emailTo, $subject, $body, $headers);$emailSent = true;}} ?><script type="text/javascript">$(document).ready(function() { $('form#contactForm').submit(function() { $('form#contactForm .error').remove(); var hasError = false; $('.requiredField').each(function() { if($(this).hasClass('email')) { var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/; if(!emailReg.test(jQuery.trim($(this).val()))) { var labelText = $(this).prev('label').text(); $(this).parent().append('<span class="error">&nbsp;&nbsp;<i>invalid email</i></span>'); hasError = true; } } }); if(!hasError) { $('#thanks').fadeOut('normal', function() {$(this).parent().append('<img src="http://stackoverflow.com/questions/loading-small.gif" alt="Loading&hellip;" height="31" width="31" />'); }); var formInput = $(this).serialize(); $.post($(this).attr('action'),formInput, function(data){ $('form#contactForm').slideUp("fast", function() { $(this).before('<p class="thanks">&nbsp;<strong>Thanks!</strong>'); $(".thanks").delay(3000).fadeOut(); }); }); } return false; });});</script><?php if(isset($emailSent) && $emailSent == true) { ?><div class="thanks"></div><?php } else { ?><form action="http://mysite.com" id="contactForm" method="post">Sign up for email notification <input type="text" name="email" size="30" id="email" value="http://stackoverflow.com/questions/3558599/<?php if(isset($_POST['email'])) echo $_POST['email'];?>" class="requiredField email" /><?php if($emailError != '') { ?><span class="error"><?=$emailError;?></span><?php } ?><input type="hidden" name="submitted" id="submitted" value="http://stackoverflow.com/questions/3558599/true" /><button type="submit">Send</form><?php } ?>\[/code\]