打开页面特效(四)

看到效果了吧

脚本说明：
把如下代码加入<body>区域中:
<div id="i1" class="intro">
</div>
<script language="JavaScript1.2">
var speed=5
if (document.layers){
var reference=window.innerWidth/window.innerHeight
var temp=eval("document.i1.clip")
temp.left=temp.top=0
temp.right=window.innerWidth
temp.bottom=window.innerHeight
}
else if (document.all){
var reference=document.body.clientWidth/document.body.clientHeight
var rightclip,leftclip,topclip,bottomclip
var temp=document.all.i1.style
topclip=leftclip=0
rightclip=temp.width=document.body.clientWidth
bottomclip=temp.height=document.body.clientHeight
}

function doit(){
window.scrollTo(0,0)
if (document.layers){
if (temp.left>window.innerWidth/2)
clearInterval(stopit)
temp.left+=reference*speed
temp.top+=speed
temp.right-=reference*speed
temp.bottom-=speed
}
else if (document.all){
if (leftclip>document.body.clientWidth/2)
clearInterval(stopit)
temp.clip="rect( "+topclip+" "+rightclip+" "+bottomclip+" "+leftclip+")"
leftclip+=reference*speed
topclip+=speed
rightclip-=reference*speed
bottomclip-=speed
}
}
stopit=setInterval("doit()",100)

</script>
<style>

</style>