Sending attr with Ajax through .hover

Sending attr with Ajax through .hover

Hello,
I'm trying to pass the id of the current hovered item to send to a page, but this is not working.Ive tried several things but nothing seams to work. I tried also  $(this).attr . Any help?
Thanks
 
$(document).ready
    (function()
        {

$(".li").hover

            (

 

  function(){$.ajax({
         url: 'test.php',
         async: false,
         data:"id=".$(this),