/* rollovers animats: */
$(document).ready(function() {
	$('.animate_back a')
		.hover(function() { 
			$("span", this).stop(true, true).animate({ opacity: 0 },'fast');
			//$("span", this).css("background-position", "left top");
		}, function() { 
			$("span", this).stop(true, false).animate({ opacity: 1 }, 'normal');
		});	
});