基于jquery的图片的切换(以数字的形式)

<style type="text/css">
.mouseOver
{
cursor:hand;
border:1px solid red;
}
</style>

<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
<script type="text/javascript">
var imgPaths = ["http://files.jb51.net/demoimg/201008/o_p1.jpg",
"http://files.jb51.net/demoimg/201008/o_p3.jpg];
$(function () {
$("#showImg").attr("src", imgPaths[0]);
var top;
var left;
var width;
var height;
top = $("#showImg").offset().top;
left = $("#showImg").offset().left;
width = $("#showImg").width();
height = $("#showImg").height();
$("#popDiv").css({ position: "absolute", top: top + height - $("#popDiv").height(), left: left + width - $("#popDiv").width(), padding: "1px" });
$("#popDiv span").hover(function () {
$(this).addClass("mouseOver");
},
function () {
$(this).removeClass("mouseOver")
}
).click(function () {
$("#showImg").attr("src", imgPaths[eval($(this).text())-1]);
});
});
</script>

<div>
<img id="showImg" alt="" height="400" width="300" src="" />
</div>
<div id="popDiv" style="width:300px;height:20px;text-align:right">
<span>1</span>
<span>2</span>
</div>