// JavaScript Document
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() {
	if (document.images) {
		m_news_over = newImage("images/menu/m_news-over.gif");
		m_livedates_over = newImage("images/menu/m_livedates-over.gif");
		m_live_over = newImage("images/menu/m_live-over.gif");
		m_promo_over = newImage("images/menu/m_promo-over.gif");
		m_biography_over = newImage("images/menu/m_biography-over.gif");
		m_discography_over = newImage("images/menu/m_discography-over.gif");
		m_shop_over = newImage("images/menu/m_shop-over.gif");
		m_whitechapel_over = newImage("images/menu/m_whitechapel-over.gif");
		m_lyrics_over = newImage("images/menu/m_lyrics-over.gif");
		m_aboutjack_over = newImage("images/menu/m_aboutjack-over.gif");
		m_casebook_over = newImage("images/menu/m_casebook-over.gif");
		m_contact_over = newImage("images/menu/m_contact-over.gif");
		m_guestbook_over = newImage("images/menu/m_guestbook-over.gif");
		m_myspace_over = newImage("images/menu/m_myspace-over.gif");
		m_you_over = newImage("images/menu/m_you-over.gif");
		preloadFlag = true;
	}
}