JS实现延时页面跳转

<script>
<!--
var limit="0:05"
if (document.images){
var parselimit=limit.split(":")
parselimit=parselimit[0]*60+parselimit[1]*1
}
function begintimer(){
if (!document.images)
return
if (parselimit==1)
window.history.back()
else{
parselimit-=1
curmin=Math.floor(parselimit/60)
cursec=parselimit
if (curmin!=0)
curtime="页面将在"+curmin+"分"+cursec+"秒后自动返回!或点击"
else
curtime=cursec
setTimeout("begintimer()",1000)
document.all.showLeft.innerHTML=curtime
window.status=curtime
}
}
//-->
</script>

 

<label id="showLeft"style="color:red"></label>