如果网页不存在

[hjhing]

如何实现网页A中WINDOWS.OPEN 网页B时候，如果B不存在，则打开网页C
用了TRY CATCH也不行啊！

[Reker熊]

<input type=button onclick="aa()" value="check">

<script>
function aa()
{
a=new ActiveXObject("Microsoft.XMLHTTP")
a.open("GET","http://expert.csdn.net/",false)
a.send()
if(a.status==200) alert("ok")
else
window.oepn('c.htm')
}
</script>

[Reker熊]

<input type=button onclick="aa()" value="check">

<script>
function aa()
{
a=new ActiveXObject("Microsoft.XMLHTTP")
a.open("GET","http://expert.csdn.net/",false)
a.send()
if(a.status==200) alert("ok")
else
window.open('c.htm')
}
</script>