打开页面特效(三)

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> 
<div id="i2" class="intro"> 
</div> 
<script language="JavaScript1.2"> 
var speed=20 
var temp=new Array() 
var temp2=new Array() 
if (document.layers){ 
for (i=1;i<=2;i++){ 
temp[i]=eval("document.i"+i+".clip") 
temp2[i]=eval("document.i"+i) 
temp[i].width=window.innerWidth 
temp[i].height=window.innerHeight/2 
temp2[i].top=(i-1)*temp[i].height 
} 
} 
else if (document.all){ 
var clipbottom=document.body.offsetHeight/2,cliptop=0 
for (i=1;i<=2;i++){ 
temp[i]=eval("document.all.i"+i+".style") 
temp[i].width=document.body.clientWidth 
temp[i].height=document.body.offsetHeight/2 
temp[i].top=(i-1)*parseInt(temp[i].height) 
} 
}

function openit(){ 
window.scrollTo(0,0) 
if (document.layers){ 
temp[1].bottom-=speed 
temp[2].top+=speed 
if (temp[1].bottom<=0) 
clearInterval(stopit) 
} 
else if (document.all){ 
clipbottom-=speed 
temp[1].clip="rect(0 auto+"+clipbottom+" 0)" 
cliptop+=speed 
temp[2].clip="rect("+cliptop+" auto auto)" 
if (clipbottom<=0) 
clearInterval(stopit) 
} 
} 
function gogo(){ 
stopit=setInterval("openit()",100) 
} 
gogo()

</script>
<style>

</style>