function makeHttpRequest(url, callback_function, return_xml)
{
	var 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('Please navigate our site using Microsoft\'s Internet Explorer or Mozilla Firefox to take advantage of all the features available.'); 
		return false;
	}
	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4)
		{		
			if (http_request.status == 200)
			{
				if (callback_function != null)
				{
					if (return_xml)
					{
						eval(callback_function + '(http_request.responseXML)');
					}
					else
					{
						eval(callback_function + '(http_request.responseText)');
					}
				}
			}			
			else
			{
			     var obj=document.getElementById("txt");
		        if(obj!=null)
		        {
		            obj.innerHTML="<div class='process'>Failed request.<br>Please try it later...</div>"
		        }	
				alert('There was a problem with the request.(Code: ' + http_request.status + ')');
			}
		}		
		else
		{		    
		    var obj=document.getElementById("txt");
		    if(obj!=null)
		    {
		        obj.innerHTML="<div class='process'><image src='/WebCenter/CommonModule/UI/images/ajax-loader.gif'></image><div> The page is receiving data, please wait ...</div></div>"
		    }		    
		}
	}
	
	http_request.open('GET', url, true);
	http_request.send(null);
}

function clearXmlCommand(s)
{
	return s.substring(s.indexOf(">")+1);
}