// Get the HTTP Object
function getHTTPObject() {
	if (window.ActiveXObject) { 
		return new ActiveXObject("Microsoft.XMLHTTP");
	} else if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	} else {
		alert("Your browser does not support AJAX.");
		return null;
	}
} 

var httpObject = null; 
function loadContent(elementId, contentFile) {
	httpObject = getHTTPObject();
	if (httpObject != null) {
		document.getElementById(elementId).innerHTML = '<img src="../images/wait.gif" height="15" width="15" />';
		httpObject.open("POST", contentFile, false);
		httpObject.onreadystatechange = function() {
			 if (httpObject.readyState == 4){
        		document.getElementById(elementId).innerHTML = httpObject.responseText;
			 }
		};
		httpObject.send(null);
	}
}