function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

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

var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		navabout_off = newImage("images/nav/about.gif");
		navabout_over = newImage("images/nav/about-over.gif");
		navabout_down = newImage("images/nav/about-down.gif");
		navsong_off = newImage("images/nav/songs.gif");
		navsong_over = newImage("images/nav/songs-over.gif");
		navsong_down = newImage("images/nav/songs-down.gif");
		navsearch_off = newImage("images/nav/search.gif");
		navsearch_over = newImage("images/nav/search-over.gif");
		navsearch_down = newImage("images/nav/search-down.gif");
		navalbuminfo_off = newImage("images/nav/albuminfo.gif");
		navalbuminfo_over = newImage("images/nav/albuminfo-over.gif");
		navalbuminfo_down = newImage("images/nav/albuminfo-down.gif");
		navcreditslinks_off = newImage("images/nav/creditslinks.gif");
		navcreditslinks_over = newImage("images/nav/creditslinks-over.gif");
		navcreditslinks_down = newImage("images/nav/creditslinks-down.gif");
		
	preloadFlag = true;
	}
}