<!--
// Left bar rollover functions

function barRollOver(arg) {
	if (document.images && (preloadFlag == true)) {
		changeImages(arg, imgRoot + arg + "-over.gif");
	}
}

function barRollOut(arg) {
	if (document.images && (preloadFlag == true)) {
		changeImages(arg, imgRoot + arg + ".gif");
	}
}

userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
/* deprecated
// set up left bar rollover stuff
	imgRoot = location.href;
	var loc = Math.max(imgRoot.lastIndexOf("/~gabriel/"), imgRoot.lastIndexOf("/satyajitray.ucsc.edu/"));
	loc = imgRoot.indexOf("/",loc+1);
	imgRoot = imgRoot.substr(loc+1);
	var arr = imgRoot.split("/");
	arr.pop();
	var m = arr.length;
	for (var i=0; i<m; i++) {
		arr[i] = "../";
	}
	imgRoot = arr.join();
	imgRoot = imgRoot + "images/navbar/";
*/

	if (document.images) {
		news_and_events_over	= newImage(imgRoot + "news_and_events-over.gif");
		about_us_over			= newImage(imgRoot + "about_us-over.gif");
		restoration_over		= newImage(imgRoot + "restoration-over.gif");
		lethbridge_over			= newImage(imgRoot + "lethbridge-over.gif");
		collection_over			= newImage(imgRoot + "collection-over.gif");
		donations_over			= newImage(imgRoot + "donations-over.gif");
		contact_us_over			= newImage(imgRoot + "contact_us-over.gif");
		faq_over				= newImage(imgRoot + "faq-over.gif");
		biography_over			= newImage(imgRoot + "biography-over.gif");
		filmography_over		= newImage(imgRoot + "filmography-over.gif");
		graphics_over			= newImage(imgRoot + "graphics-over.gif");
		books_on_over			= newImage(imgRoot + "books_on-over.gif");
		books_by_over			= newImage(imgRoot + "books_by-over.gif");
		articles_over			= newImage(imgRoot + "articles-over.gif");
		awards_over				= newImage(imgRoot + "awards-over.gif");
		critics_over			= newImage(imgRoot + "critics-over.gif");
		ray_links_over			= newImage(imgRoot + "ray_links-over.gif");
		preloadFlag = true;
	}
}

// -->