var req;
function loadXMLDoc( url, output ) 
{
    // branch for native XMLHttpRequest object
    if (window.XMLHttpRequest) {
    	
        req = new XMLHttpRequest();
        
		eval ("req.onreadystatechange = " + output );
		
        req.open("GET", url, true);
        
        req.send(null);
        
    // branch for IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
    	
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
			
            eval ("req.onreadystatechange = " + output );
            req.open("GET", url, true);
            req.send();
        }
    }
    
    
}