var xmlhttp;
function createxmlhttp(){
	if(window.XMLHttpRequest){//IE7, Mozilla ,Firefox 等浏览器内置该对象
		xmlhttp = new XMLHttpRequest();
	}else if(window.ActiveXObject){//IE6、IE5
		try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");} catch (e) { }
		if (xmlhttp == null) try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");} catch (e) { }
    }
}
function domembers(){
	var url = "/plus/expansion_members_top.php";
	createxmlhttp();
	xmlhttp.open("GET",url,true);
	xmlhttp.onreadystatechange = callback;
	xmlhttp.send(null);
}
function callback(){
	if(xmlhttp.readyState == 4){
		if(xmlhttp.status == 200){
		document.getElementById("expmember").innerHTML=xmlhttp.responseText;
		}else{
		document.getElementById("expmember").innerHTML=xmlhttp.responseText;
		}
	}
}