function preloadImages () {
		
	
	}

	function imgOver (thisImg) {
		switch (thisImg) {
			case "btnWeb": thisSrc = "images/btn-web-on.gif"; break;
			case "btnImages": thisSrc = "images/btn-images-on.gif"; break;
			case "btnMusic": thisSrc = "images/btn-music-on.gif"; break;
			case "btnGames": thisSrc = "images/btn-games-on.gif"; break;
			case "btnAbout": thisSrc = "images/btn-about-on.gif"; break;
			case "btnArchives": thisSrc = "images/btn-archives-on.gif"; break;
			case "ftrHome": thisSrc = "images/ftr-home-on.gif"; break;
			case "ftrMap": thisSrc = "images/ftr-map-on.gif"; break;
			case "ftrTop": thisSrc = "images/ftr-top-on.gif"; break;
		} 
		document.images[thisImg].src = thisSrc;
	}

	function imgOut (thisImg) {
		switch (thisImg) {
			case "btnWeb": thisSrc = "images/btn-web.gif"; break;
			case "btnImages": thisSrc = "images/btn-images.gif"; break;
			case "btnMusic": thisSrc = "images/btn-music.gif"; break;
			case "btnGames": thisSrc = "images/btn-games.gif"; break;
			case "btnAbout": thisSrc = "images/btn-about.gif"; break;
			case "btnArchives": thisSrc = "images/btn-archives.gif"; break;
			case "ftrHome": thisSrc = "images/ftr-home.gif"; break;
			case "ftrMap": thisSrc = "images/ftr-map.gif"; break;
			case "ftrTop": thisSrc = "images/ftr-top.gif"; break;
		} 
		document.images[thisImg].src = thisSrc;
	}