$(document).ready(function(){

	$(".rollover").hover(
	 function() {
	  curr = $(this).find("img").attr("src");
	  overlen = curr.length;
	  over = curr.substr(0, overlen-4);
    over = over+'2.gif';
	  $(this).find("img").attr({ src: over});
 	},
 
 function() {
  $(this).find("img").attr({ src: curr});
 }
)

$(".rollover").find("img").each(function(i) {
  temp = this.src;
  prelen = temp.length;
  pre = temp.substr(0, prelen-4);
  pre = pre+'2.gif';
  preload_image_object = new Image();
  preload_image_object.src = pre;
}); 





});/* end document ready */