function startAjax() {
	
	var xmlHttp = null;
	
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	} catch (e) {
		// Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	
	return xmlHttp;
	
}

function loadSubPage(divID,subPage) {

	xmlHttpLoad = startAjax();
	
	xmlHttpLoad.onreadystatechange = function() {
		if (xmlHttpLoad.readyState == 4) {
			document.getElementById(divID).innerHTML = xmlHttpLoad.responseText;
		}
	}
	
	xmlHttpLoad.open("GET",subPage,true);
	xmlHttpLoad.send(null);
	
}