function createRequestObject(){
	var request_o; //declare the variable to hold the object.
	var browser = navigator.appName; //find the browser name
	if(browser == "Microsoft Internet Explorer"){
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	}else{		
		request_o = new XMLHttpRequest();	
	}	
	return request_o; //return the object
}
var http = createRequestObject(); 


function checkNewSupportReq(){
	http.open('GET','_pages/checknew_support_req.php',true);
	http.onreadystatechange = handleWindow; 
	http.send(null);
}

function handleWindow(){
	if (http.readyState==4) {
		if(http.responseText != ""){
			var new_room = http.responseText;
			var room_arr = new_room.split("|");
			for(var i=0; i<room_arr.length; i++){
				if(room_arr[i] != ""){
					var randomnumber=Math.floor(Math.random()*999999999);
					window.open("./chat_gateway.html?chat_room="+room_arr[i],randomnumber,"type=fullWindow,fullscreen,scrollbars=yes,resizable=yes");
				}
			}
		}
	}
}	
//checkNewSupportReq();
function set_time_interval(){
	setInterval('checkNewSupportReq()', 5000);
}
set_time_interval();