$(document).ready(function(){

	        $(".wrap .content .item").each(function(){
	            var link = $(this).children("a");
	            var image = $(link).children("img");
	            var imgsrc = $(image).attr("src");

	            // add mouseover
	            $(link).mouseover(function(){
	                var on = imgsrc.replace(/.jpg$/gi,".gif");
	                $(image).attr("src",on);
	            });

	            // add mouse out
	            $(link).mouseout(function(){
	                $(image).attr("src",imgsrc);
	            });
	        });

	    });