var http_request = false;
function updateListings(vAgentID,vOfficeCode,m)
{
	vURL = "tour_grab.php?mode=" + m + "&agent_code=" + vAgentID + "&office_code=" + vOfficeCode;
	http_request = false;
	if (window.XMLHttpRequest) {// Mozilla, Safari,...
		
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
		}
	} else if (window.ActiveXObject) { // IE
		try 
		{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try
			{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {}
		}
	}
	if ( !http_request ) {
		alert('Giving up... Cannot retrieve listings.');
		return false;
	}
	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				//alert("Success: " + http_request.responseText);
				//document.getElementById("temp").innerHTML = http_request.responseText;
			} else if (http_request.status == 500) {
				//alert("Error 1: " + http_request.responseText);
				//document.getElementById("temp").innerHTML = http_request.responseText;
			} else {
				//alert("Error 2: " + http_request.responseText);
				//document.getElementById("temp").innerHTML = http_request.responseText;
			}
		} else {
			//alert("Fetching...");
			//document.getElementById("temp").innerHTML = "Fetching...";
		}
	}
	http_request.open('POST', vURL, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.send(vURL);
}