var xmlhttp;
var xmltext;
var callbackfun;
function CObject()
{
		if(window.ActiveXObject)
		{
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
		else if(window.XMLHttpRequest)
		{
			xmlhttp=new XMLHttpRequest();
		}
}
function callback()
{
	if(xmlhttp.readyState==4){
		if(xmlhttp.status==200){
			xmltext=unescape(xmlhttp.responseText);
				callbackfun();
		}
	}
}
function get(url){
	var ot=new Date();
	CObject();
	xmlhttp.onreadystatechange=callback;
	xmlhttp.open("GET",url+"&otnum="+ot.getSeconds(),true);
	//xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlhttp.send(null);
}