新手求大神们帮帮忙...

[code=JScript][/<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <style type="text/css">
        body {  font-size:13px; color:#222; margin:0;}
        p { margin:20px; padding:0;}        
        #container { width:960px; margin:20px auto; position:relative; list-style:none;}
        #container li { width:150px; height:100px; position:absolute; top:0; left:0;
               text-align:center; border:solid 1px #aaa;
               cursor:pointer;
               -moz-box-shadow: 0px 0px 3px #888;
               -webkit-box-shadow: 0px 0px 3px #888;
               box-shadow: 0px 0px 3px #888;
               -moz-border-radius:5px; -webkit-border-radius:
               5px; border-radius:5px;
               background:#e0e0e0 url(file:///D|/%E6%96%87%E4%BB%B6/web/%E5%A4%A7%E4%B8%89%E4%B8%8A%E5%AD%A6%E4%B9%A0%E7%9A%84%E5%AE%9E%E6%88%98/bkg.png) repeat-x scroll left top;}
        #container li a { color:#222; text-decoration:none;}              
        #container li.current { border:solid 1px #888; background:#f0f0f0 url(file:///D|/%E6%96%87%E4%BB%B6/web/%E5%A4%A7%E4%B8%89%E4%B8%8A%E5%AD%A6%E4%B9%A0%E7%9A%84%E5%AE%9E%E6%88%98/bkg-current.png) repeat-x scroll left top; cursor:default;}
        #container li.current a { color:#0010a9; text-decoration:underline;}
        
    </style>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function() {
            
            var itemWidth = $("#container li").width();
            // hide 50% of each window
            var itemPosition = itemWidth * 50 / 100;
            // slide each window 60% if its width   
            var itemMove = itemWidth * 60 / 100;                    // move windows below eachother
            $("#container li").each(function(i) {
                $(this).attr("id", i).css("z-index", 100 - i).css("left", itemPosition * i);
            });            $("#container li").click(function(e) {
                var currentID = parseInt($(".current").attr("id"));
                var clickedID = parseInt($(this).attr("id"));         if (currentID != clickedID) {
                e.preventDefault();
                    var currentZ = 99;
                    var current = $(this);
                    setTimeout(function() { $(".current").removeClass("current"); current.css("z-index", currentZ).addClass("current"); }, 500);                    if (clickedID > currentID) {
                    var i = 1;
                    for (j = clickedID - 1; j >= 0; j = j - 1) {
                        $("#" + j).animate({ "left": "-=" + itemMove * (i) + "px" }, 500);
                        $("#" + j).animate({ "left": "+=" + itemMove * (i) + "px" }, 300);
                        i = i + 1;
                    }
                    var i = 1;
                    setTimeout(function() {
                        for (j = clickedID - 1; j >= 0; j = j - 1) {
                            $("#" + j).css("z-index",currentZ - i);
                            i = i + 1;
                        }
                    }, 500);
                    }
                    else {
                        var i = 1;
                        var total = $("#container li").length;
                        for (j = clickedID + 1; j <= total; j = j + 1) {
                            $("#" + j).animate({ "left": "+=" + itemMove * i + "px" }, 500);
                            $("#" + j).animate({ "left": "-=" + itemMove * i + "px" }, 300);
                            $("#" + j).css("z-index", currentZ - i);
                        }
                         /*  不知道这里为什么不加这个呢~？就可以有那个缓冲的效果呢？
                         var i = 1;
                         setTimeout(function() {
                        for (j = clickedID + 1; j <= total; j = j + 1) {
                            $("#" + j).css("z-index",currentZ - i);
                            i = i + 1;
                        }
                    }, 500);那个表示在500毫秒之后才改变z-index，不过为什们当(clickedID > currentID)就要用这个函数
而当clickedID<currentID 就不用调用这个函数了 ，当（clickedID<currentID）在不调用这个函数的情况下而也会出现500毫秒才改变z-index的效果呢？~？*/
                    }
                }
            });
        });
    </script>
</head><body>    <ul id="container">
        <li class="current"><p>This element is on the top by default</p></li>
        <li><p>Go to<br /><a href="http://www.jankoatwarpspeed.com">Warp Speed</a> blog</p></li>        <li><p>Go to<br /><a href="http://www.jquery.com">jQuery</a></p></li>
        <li><p>Go to<br /><a href="http://www.opera.com/mobile/">Opera Mobile</a></p></li>
    </ul>
</body>
</html>
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