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) {
		Navbar_01_over = newImage("images/Navbar_01-over.gif");
		Navbar_01_down = newImage("images/Navbar_01-down.gif");
		Navbar_02_down = newImage("images/Navbar_02-down.gif");
		Navbar_02_over = newImage("images/Navbar_02-over.gif");
		Navbar_03_down = newImage("images/Navbar_03-down.gif");
		Navbar_03_over = newImage("images/Navbar_03-over.gif");
		Navbar_04_down = newImage("images/Navbar_04-down.gif");
		Navbar_04_over = newImage("images/Navbar_04-over.gif");
		Navbar_05_over = newImage("images/Navbar_05-over.gif");
		Navbar_05_down = newImage("images/Navbar_05-down.gif");
		preloadFlag = true;
	}
}