jQuery(document).ready(function($){

	    //Set opacity on each span to 0%
	    $(".rollover").css({'opacity':'0'});
		$('.img_list a').hover(
			function() {
				$(this).find('.rollover').stop().fadeTo(250, 1);
			},
			function() {
				$(this).find('.rollover').stop().fadeTo(250, 0);
			}
		)
		});