function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e) {
		// Internet Explorer
		try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); }
		catch (e) { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); }
	}
	return xmlHttp;
}

	var xmlHttp;
	var divID;
	
	function showLoading() {
		var Loading = document.getElementById("div_body_uevents");
		Loading.innerHTML = '<br><br><br><center><img src="images/indicator.gif" width="16" height="16" alt="" border="0"></center><br><br><br>';
		//Loading.style.display = "block";
	}

	function hideLoading() {
		var Loading = document.getElementById("div_body_uevents");
		Loading.innerHTML = '';
		//Loading.style.display = "none";
	}

	function ajaxOptions(sysID, URL) { 
		xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null) { alert ("Your browser does not support AJAX."); return; }
		
		divID = sysID;
		var url = URL + "&sid=" + Math.random();
		xmlHttp.onreadystatechange = ajaxOptionsChanged;
		xmlHttp.open("GET",url,true);
		xmlHttp.send(null);
	}

	function ajaxOptionsChanged() { 
		if (xmlHttp.readyState==1) { showLoading(); }
		else if (xmlHttp.readyState==2) {  }
		else if (xmlHttp.readyState==3) {  }
		else if (xmlHttp.readyState==4) {
			//hideLoading();
			document.getElementById(divID).innerHTML = xmlHttp.responseText;
			//document.getElementById(divID).style.display = "block";
		}
	}