$(document).ready(function(){
	$('#features a span.overlay').css("opacity",0);
	$('#features a span.overlay').hover(function() {
			if (':animated') {
      			jQuery(this).stop().animate({opacity:1});
    		} else {
      		// fade in quickly
      			jQuery(this).animate({opacity:1});
    		}
		},
		function() {
			if (':animated') {
      			jQuery(this).stop().animate({opacity:0});
    		} else {
      		// fade in quickly
      			jQuery(this).animate({opacity:0});
    		}
		});
		
	
		
});