var userAgent = navigator.userAgent.toLowerCase();
var is_ie = (userAgent.indexOf('msie') != -1);

$ = function(id){
	return document.getElementById(id);
}

function getHttp()
{
	var oT = false;
	try {
		oT = new ActiveXObject('Msxml2.XMLHTTP');
		} catch(e) {
	try {
		oT = new ActiveXObject('Microsoft.XMLHTTP');
		} catch(e) {
			oT = new XMLHttpRequest();
		}
	}
	return oT;
}


function startRequest(url,lb)
{
	delete HR;
	HR=null;
	var str="GET";
	var HR = getHttp();
	function processAJAX(lb)
	{
		if (HR.readyState == 4)
		{
			if (HR.status == 200)
			{
				var tmp = HR.responseText;
				$(lb).innerHTML = tmp;
			}
			else
			{
				var tmp = "<p>ÍøÒ³´íÎó: " + HR.statusText +"<\/p>";
				$(lb).innerHTML=tmp;
			}
			delete HR;
			HR=null;
			if(is_ie)CollectGarbage;
		}
		else
		  {
				$(lb).innerHTML="Loading¡­¡­";
		 }	
	}
	HR.onreadystatechange = function() {processAJAX(lb);};
	HR.open(str, url, true);
	HR.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gb2312");
	HR.send(null);
}