var xmlHttp;

function getdata(urlstr, idstr) { 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("FATAL ERROR! Your browser does not support AJAX!");
		return;
	}
	var url=urlstr;
	url=url+"?rnd="+Math.random();
	//alert(url);
	xmlHttp.onreadystatechange=function() {
	    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
			document.getElementById(idstr).innerHTML=xmlHttp.responseText;
		}
		//alert(xmlHttp.responseText);
	}
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

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;
}