For some reason some controls in edit mode throws: save your changes before continuing, click "OK". To continue without saving changes, click "Cancel".
To fix the leave authoring problem in sharepoint you need to add the following tag in the header of your master page:
xhr.setRequestHeader that you can get from the web services page (see bellow)
in the SharePoint' list you need two columns Title and Description
the browser alert window will return some information that you could remove after testing
after posting the information in the list it will run the processResult function where you can do some fancy user feedback
Html with the fields to be edited by the user
Title:
Description:
In the SharePoint web services description you can extract the value for the xhr.setRequestHeader variable invoking /_vti_bin/lists.asmx?op=UpdateListItems, here is an example: