function getAJAXRequest() {
	var req = null;

	try{
		req = new XMLHttpRequest();
	} catch (ms) {
		try{
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (nonms){
			try{
				req = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed){
				req = null;
			}
		}  
	}

	return req;
}


function replacecontent(divid,sourceurl) {
	var repdiv = document.getElementById(divid);
	var request = getAJAXRequest();
	if (request != null) {
		request.open("GET", sourceurl, true);
		request.onreadystatechange = function() {
			if (request.readyState == 4) {
				if (request.status == 200) {
					repdiv.innerHTML = request.responseText;
				} 
        		}
		}
		request.send(null);
	}
}