// These functions allow for the dynamic navigation bar on the left of
// each page. The content is loaded from /navbar.html. Please edit that
// file to make changes to the navigation bar.

function ahah(url, target) {
	document.getElementById(target).innerHTML = 'Fetching data...';
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	} 
	else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if (req != undefined) {
		req.onreadystatechange = function() {ahahDone(url, target);};
		req.open("GET", url, true);
		req.send("");
	}
}  

function ahahDone(url, target) {
	if (req.readyState == 4) { // only if req is "loaded"
		if (req.status == 200) { // only if "OK"
			document.getElementById(target).innerHTML = req.responseText;
		} else {
			document.getElementById(target).innerHTML="Error:\n"+ req.status + "\n" +req.statusText;
		}
	}
}

function loadNavBar(filename) {
	ahah(filename,"ealc-navbar");
}