I want to upload a whole user-updated html div, to later download again. This is what I put in the header of the html (it gave no errors, but doesn't upload either):

Code:
<script type="text/javascript">
 $(document).ready(function(){	 document.onbeforeunload = function {	
content = $('#content').html();
  $.post(url, {jsonData: JSON.stringify(content) }, function(response){$('#changelist').text(response);
...