// JavaScript Document
var xmlHttp

function showTracker() {
	setTimeout("showTracker()", 30000);
	// 30000 = 30 seconds

	xmlHttp = GetXmlHttpObject()
	if (xmlHttp == null) {
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url = "includes/ajax/ajax.aspx"
	xmlHttp.onreadystatechange = stateChanged
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateChanged() {
	if (xmlHttp.readyState == 4 || xmlHttp.readyState == "complete") {
		document.getElementById("lblTracker").innerHTML = xmlHttp.responseText
	}
}

function GetXmlHttpObject() { 
	var objXMLHttp = null
	if (window.XMLHttpRequest) {
		objXMLHttp = new XMLHttpRequest()
	} else if (window.ActiveXObject) {
		objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}