function ajaxpl(url,divId)
{

xmlhttp_request=getXMLRequester();

xmlhttp_request.onreadystatechange = function() 
{
if (xmlhttp_request.readyState == 4)
{
if (xmlhttp_request.status == 200)
{

//var stateD=document.getElementById(divId);
//stateD.style.display="block";
document.getElementById(divId).innerHTML=xmlhttp_request.responseText;
//showdivid=divId
//window.alert(xmlhttp_request.responseText)
}
else
{
alert("请求页面错误");
}
}
else
{
	var stateD=document.getElementById(divId);
	stateD.innerHTML="<div style='margin:10px'><img src='images/loading.gif'></div>";
}
}
xmlhttp_request.open('GET', url, true); 
xmlhttp_request.send(null); 
}