fadeto on hover problem?

fadeto on hover problem?

Hi,

I have a unordered list containing some images and i want to set opacity to 1 when the mouse is over a list item <li> and to 0.67 when leaving it.

i did the following but the problem i got is the opacity is doing a blink like effect... turning opacity from 1 to 0.67 to 1 to 0.67... and so on each time i move the mouse when im over the <li> element...
  1. $(document).ready(function () {
        $(".li-thumb").hover(
           function() {
              $(this).fadeTo('fast', 1.0);
           }, function() {
              $(this).fadeTo('fast', 0.67);
           }
        );
    });








anyone knows how to solve this?

thanks!