 <!--

//AJAX异步读取代码

function getAjax(url,id){
var pageRequest = false;
if (window.XMLHttpRequest) // if Mozilla, Safari etc 
{
	pageRequest = new XMLHttpRequest(); 
}
else if (window.ActiveXObject){ // if IE 
			try { 
				pageRequest = new ActiveXObject("Msxml2.XMLHTTP");
			} 
			catch (e){
						try{ 
							pageRequest = new ActiveXObject("Microsoft.XMLHTTP");
						} 
						catch (e){}
			} 
} 
else 
	return false
var r=Math.floor(Math.random()*10000+1);//产生随机变量
url=url+"var="+r;
	pageRequest.onreadystatechange = function()
	{
		if(pageRequest.readyState==2)
		{
			document.getElementById(id).innerHTML="正在提交数据...";
		}
		else if(pageRequest.readyState==3)
		{
			document.getElementById(id).innerHTML="数据传送中.....";
		}
		else if(pageRequest.readyState==4)
		{
			document.getElementById(id).innerHTML="";
			if(pageRequest.status==200)
			{
				document.getElementById(id).innerHTML = pageRequest.responseText;
			}
			else
			{
				document.getElementById(id).innerHTML= "error";
			}
		}
		else
		{
			document.getElementById(id).innerHTML = "正在请求，请稍后...";
		}
	}
pageRequest.open("GET", url ,true);
pageRequest.send(null);
}
 -->