var req;
function loadXMLDoc(url, elem_id) {
	var response_content;
	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
	if(req) {
		req.onreadystatechange = function(){
			if (req.readyState == 4) {
				// only if "OK"
				if (req.status == 200) {
					//alert(req.responseText);
					document.getElementById(elem_id).innerHTML = req.responseText;
				} else {
					//alert("There was a problem retrieving the XML data:\n" + req.statusText);
				}
			}
		}
		req.open("GET", url, true);
		req.send("");
	}
}