网页特效放送：跟随鼠标的图片的网页代码

<script LANGUAGE="JavaScript">
var newtop=0; var newleft=0; if (navigator.appName == "Netscape") {; layerStyleRef="layer.";
layerRef="document.layers"; styleSwitch=""; }; else; {; layerStyleRef="layer.style."; layerRef="document.all";
styleSwitch=".style"; }; function doMouseMove() {; layerName = 'iit'; eval('var curElement='+layerRef+'["'+layerName+'"]')
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"'); eval('curElement'+styleSwitch+'.visibility="visible"')
eval('newleft=document.body.clientWidth-curElement'+styleSwitch+'.pixelWidth')
eval('newtop=document.body.clientHeight-curElement'+styleSwitch+'.pixelHeight')
eval('height=curElement'+styleSwitch+'.height')
eval('width=curElement'+styleSwitch+'.width')
        width=parseInt(width)
        height=parseInt(height)
        if (event.clientX > (document.body.clientWidth - 5 - width))
        {
        newleft=document.body.clientWidth + document.body.scrollLeft - 5 - width
        }
        else
        {
        newleft=document.body.scrollLeft + event.clientX
        }
        eval('curElement'+styleSwitch+'.pixelLeft=newleft')

        if (event.clientY > (document.body.clientHeight - 5 - height))
        {
        newtop=document.body.clientHeight + document.body.scrollTop - 5 - height
        }
        else
        {
        newtop=document.body.scrollTop + event.clientY
        }
        eval('curElement'+styleSwitch+'.pixelTop=newtop')
}
    document.onmousemove = doMouseMove;
</script>
<script language="javascript">
    if (navigator.appName == "Netscape") {
    }
    else
    {
        document.write('<div ID=OuterDiv>')
document.write('<img ID=iit src="图片地址" STYLE="position:absolute;TOP:5pt;LEFT:5pt;Z-INDEX:10;visibility:hidden;">')
        document.write('</div>')
    }
</script>