<script>
tim=1
setInterval("tim++",100)
b=1

var autourl=new Array()
autourl[1]="www.tom.com"
autourl[2]="www.sohu.com"
autourl[3]="www.sina.com"
autourl[4]="www.nba.com"
autourl[5]="www.cctv.com"

function butt(){
document.write("<form name=autof>")
for(var i=1;i<autourl.length;i++)document.write("<input type=text name=txt"+i+" size=10 value=測試中……> =》<input type=text name=url"+i+" size=25> =》<input type=button value=GO onclick=window.open(this.form.url"+i+".value)>&nbsp;<br>")

}
butt()
function auto(url){
document.forms[0]["url"+b].value=url
if(tim>200)
{document.forms[0]["txt"+b].value="鏈接超時"}
else
{document.forms[0]["txt"+b].value="時間"+tim/10+"秒"}
b++
}
function run(){for(var i=1;i<autourl.length;i++)document.write("<img src=http://"+autourl[i]+"/"+Math.random()+" width=1 height=1 onerror=auto('http://"+autourl[i]+"')>")}
run()</script>