转自: http://goaler.xicp.net/new/showlog.asp?id=4
<script>
var odiv
var xh
function getxml()
{
odiv = document.all.m
odiv.innerhtml = "正在装载栏目数据，请稍侯......."
odiv.style.display= ""
xh = new activexobject("microsoft.xmlhttp")
xh.onreadystatechange = getready
xh.open("get",a.value,true)
xh.send()
}
function getready()
{
if(xh.readystate==4)
{
if(xh.status==200)
{
odiv.innerhtml = "完成"
}
else
{
odiv.innerhtml = "抱歉，装载数据失败。原因：" + xh.statustext
}
}
}
</script>
<body>
xmlhttp异步的例子:
url:<input name=a value="" style="width:600px">
<input onclick="getxml()" type="button" value="得到源代码">
<input onclick="if(xh && xh.responsetext) {alert(xh.responsetext);odiv.innerhtml=xh.responsetext}" type="button" value="显示源代码">
<div id=m></div>
