var xmlHttp;
var el_id = 0;

function ajax_get(elid, query) {
	document.getElementById('login_cover').style.display="";
	document.getElementById('login_popup').style.display="";
	offset=window.pageYOffset||document.body.scrollTop||document.documentElement.scrollTop;
	document.getElementById('login_popup').style.top=40+offset+'px';
	document.getElementById('login_popup').style.left=(screen.width-680)/2+'px';


}

function stateChanged() { 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") { 
		document.getElementById(el_id).innerHTML=xmlHttp.responseText;
	} 
}

function GetXmlHttpObject() {
	var xmlHttp=null;
	try	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	} catch (e)	{
		//Internet Explorer
		try	{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e)	{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}