如下所示：
复制代码代码如下:
< HTML xmlns:CAP >
< HEAD >
< TITLE >JS检测用户是否上网< /TITLE >
< META HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=gb2312" >
< style >
@media all {CAP//:clientCaps {behavior:url(#default#clientcaps)}}
< /style >
< script for=window event=onload >
if (oClientCaps.connectionType=="online")
{
sType.innerText="Internet欢迎您！";
}
else
{
sType.innerText="怎么没有上网？";
}
< /script >
< /HEAD >
< BODY >
< CAP:clientCaps id="oClientCaps" / >
< div id=sType >< /div >
< /BODY >
< /HTML >