本文放在这里，算作一个备份吧。

<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>

xmlhttp异步的例子:
URL: name=a value="http://www.microsoft.com" style="width:600px">

<script>
var oDiv
var xh
function getXML()
{
oDiv = document.all.m
oDiv.innerHTML = "正在装载数据，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>

<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> xmlhttp异步的例子: URL: