ajax局部刷新

script>
setInterval("refreshTime()",1000);     //每格1秒刷新一次
funciton refreshTime()
{
   var dateObj = new Date();

   time.innerHTML = dateObj.toLocaleDateString();   //刷新div里面的内容
}
</script>
<div id=time></div>

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function doRef()
{
var url = "xxx.asp?a=1&b=2"
var dateRequest = new ActiveXObject("Microsoft.XMLHTTP");
dateRequest.abort() ;
dateRequest.open( "GET", url , true );
dateRequest.onreadystatechange = onSendSelf ;
dateRequest.send() ;
function onSendSelf()
{
if( dateRequest.readyState != 4 )
{
return ;
}
var theDate = dateRequest.responseText ;//如果出现编码问题,可以在服务端escape一下,然后在这里使用unescape( responseText )
theDiv.innerHTML = theDate ;
}
}
setInterval( doRef , 1000 ) ;//1秒刷新一次是不是快了点?