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) {
				big_map_hotspots_01_ImageMap_03_over = newImage("images/big_map_hotspots_01-ImageMa.gif");
				big_map_hotspots_01_ImageMap_04_over = newImage("images/big_map_hotspots_01-Imag-03.gif");
				big_map_hotspots_01_ImageMap_05_over = newImage("images/big_map_hotspots_01-Imag-04.gif");
				big_map_hotspots_01_ImageMap_02_over = newImage("images/big_map_hotspots_01-Imag-05.gif");
				preloadFlag = true;
			}
		}