$(function () {  
    // Stack initialize  
    var openspeed = 300;  
    var closespeed = 300;  
    $('.stack>img').toggle(function(){  
        var vertical = 0;  
        var horizontal = 0;  
        var $el=$(this);  
        $el.next().children().each(function(){  
            $(this).animate({top: '-' + vertical + 'px', left: horizontal + 'px'}, openspeed);  
            vertical = vertical + 55;  
            horizontal = (horizontal+.75)*2;  
        });  
        $el.next().animate({top: '-50px', left: '10px'}, openspeed).addClass('openStack')  
           .find('li a>img').animate({width: '50px', marginLeft: '9px'}, openspeed);  
        $el.animate({paddingTop: '0'});  
    }, function(){  
        //reverse above  
        var $el=$(this);  
        $el.next().removeClass('openStack').children('li').animate({top: '55px', left: '-10px'}, closespeed);  
        $el.next().find('li a>img').animate({width: '79px', marginLeft: '0'}, closespeed);  
        $el.animate({paddingTop: '35'});  
    });  
  
    // Stacks additional animation  
    $('.stack li a').hover(function(){  
        $("img",this).animate({width: '56px'}, 100);  
        $("span",this).animate({marginRight: '30px'});  
    },function(){  
        $("img",this).animate({width: '50px'}, 100);  
        $("span",this).animate({marginRight: '0'});  
    });  
});