$(document).ready(function() {
 

 
    //On mouse over those thumbnail
    $('.item, .index-gallery-item').hover(function() {
         

        //Display the caption
        $(this).find('div.caption, div.captiongallery').stop(false,true).fadeIn(200);
    },
    function() {

        //Hide the caption
        $(this).find('div.caption, div.captiongallery').stop(false,true).fadeOut(200);
    });
 
});