Галерея apple слайдшоу

<div id="main">  
<div id="gallery">  
<div id="slides">  
<div><img src="img/sample_slides/macbook.jpg" width="920" height="400" /></div>  
<div><img src="img/sample_slides/iphone.jpg" width="920" height="400" /></div>  
<div><img src="img/sample_slides/imac.jpg" width="920" height="400" /></div>  
</div>  
<div id="menu">  
<ul>  
<li> </li><li><a href=""><img src="img/sample_slides/thumb_macbook.png" /></a></li><li><a href=""><img src="img/sample_slides/thumb_iphone.png" /></a></li><li><a href=""><img src="img/sample_slides/thumb_imac.png" /></a></li>  
</ul>  
</div>  
</div>  
</div>

body,h1,h2,h3,p,quote,small,form,input,ul,li,ol,label{  
/* Page reset */  
margin:0px;  
padding:0px;  
}  

body{  
/* Setting default text color, background and a font stack */  
color:#444444;  
font-size:13px;  
background: #f2f2f2;  
font-family:Arial, Helvetica, sans-serif;  
}  

/* Gallery styles */  

#gallery{  
/* CSS3 Box Shadow */  
-moz-box-shadow:0 0 3px #AAAAAA;  
-webkit-box-shadow:0 0 3px #AAAAAA;  
box-shadow:0 0 3px #AAAAAA;  

/* CSS3 Rounded Corners */  

-moz-border-radius-bottomleft:4px;  
-webkit-border-bottom-left-radius:4px;  
border-bottom-left-radius:4px;  

-moz-border-radius-bottomright:4px;  
-webkit-border-bottom-right-radius:4px;  
border-bottom-right-radius:4px;  

border:1px solid white;  

background:url(img/panel.jpg) repeat-x bottom center #ffffff;  

/* The width of the gallery */  
width:920px;  
overflow:hidden;  
}  

#slides{  
/* This is the slide area */  
height:400px;  

/* jQuery changes the width later on to the sum of the widths of all the slides. */  
width:920px;  
overflow:hidden;  
}  

.slide{  
float:left;  
}  

#menu{  
/* This is the container for the thumbnails */  
height:45px;  
}  

ul{  
margin:0px;  
padding:0px;  
}  

li{  
/* Every thumbnail is a li element */  
width:60px;  
display:inline-block;  
list-style:none;  
height:45px;  
overflow:hidden;  
}  

li.inact:hover{  
/* The inactive state, highlighted on mouse over */  
background:url(img/pic_bg.png) repeat;  
}  

li.act,li.act:hover{  
/* The active state of the thumb */  
background:url(img/active_bg.png) no-repeat;  
}  

li.act a{  
cursor:default;  
}  

.fbar{  
/* The left-most vertical bar, next to the first thumbnail */  
width:2px;  
background:url(img/divider.png) no-repeat right;  
}  

li a{  
display:block;  
background:url(img/divider.png) no-repeat right;  
height:35px;  
padding-top:10px;  
}  

a img{  
border:none;  
}  

/* The styles below are only necessary for the demo page */  

h1{  
font-family:"Myriad Pro",Arial,Helvetica,sans-serif;  
font-size:36px;  
font-weight:normal;  
margin-bottom:15px;  
}  

h2{  
font-family:"Myriad Pro",Arial,Helvetica,sans-serif;  
font-size:12px;  
font-weight:normal;  
position:absolute;  
right:0;  
text-transform:uppercase;  
top:15px;  
}  

#main{  
/* The main container */  
margin:15px auto;  
text-align:center;  
width:920px;  
position:relative;  
}  

a, a:visited {  
color:#0196e3;  
text-decoration:none;  
outline:none;  
}  

a:hover{  
text-decoration:underline;  
}  

p{  
padding:10px;  
text-align:center;  
}

$(document).ready(function(){  
/* This code is executed after the DOM has been completely loaded */  

var totWidth=0;  
var positions = new Array();  

$('#slides .slide').each(function(i){  
/* Loop through all the slides and store their accumulative widths in totWidth */  
positions[i]= totWidth;  

totWidth += $(this).width();  

/* The positions array contains each slide's commulutative offset from the left part of the container */  

if(!$(this).width())  
{  

alert("Please, fill in width & height for all your images!");  
return false;  
}  
});  

$('#slides').width(totWidth);  

/* Change the cotnainer div's width to the exact width of all the slides combined */  

$('#menu ul li a').click(function(e){  

/* On a thumbnail click */  

$('li.menuItem').removeClass('act').addClass('inact');  
$(this).parent().addClass('act');  

var pos = $(this).parent().prevAll('.menuItem').length;  

$('#slides').stop().animate({marginLeft:-positions[pos]+'px'},450);  
/* Start the sliding animation */  

e.preventDefault();  
/* Prevent the default action of the link */  

});  

$('#menu ul li.menuItem:first').addClass('act').siblings().addClass('inact');  
/* On page load, mark the first thumbnail as active */  

});