// does the main menus image preload & rollover stuff
		
		var preloaded = [];

		for (var i = 1; i <= 8; i++) {
			preloaded[i] = [loadImage("menu" + i + "_off.gif"), loadImage("menu" + i + "_on.gif")];
		}
		
// helper functions
		var preloadFlag = false;
		function preloadImages() {
			if (document.images) {		
				preloadFlag = true;
			}
		}		

		function loadImage(sFilename) {
			var img = new Image();
			img.src ="imgs/new_menu_inc/" + sFilename;
			return img;
		}

		function swapImage(imgName, sFilename) {
			document.images[imgName].src = sFilename;
		}