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) {
		map08_over = newImage("icons/map08.gif");
		map07_over = newImage("icons/map07.gif");
		map06_over = newImage("icons/map06.gif");
		map05_over = newImage("icons/map05.gif");
		map04_over = newImage("icons/map04.gif");
		map03_over = newImage("icons/map03.gif");
		map02_over = newImage("icons/map02.gif");
		map01_over = newImage("icons/map01.gif");
		preloadFlag = true;
	}
}