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_03_over = newImage("images/navbar_03-over.png");
		navbar_05_over = newImage("images/navbar_05-over.png");
		navbar_07_over = newImage("images/navbar_07-over.png");
		navbar_09_over = newImage("images/navbar_09-over.png");
		navbar_10_over = newImage("images/navbar_10-over.png");
		navbar_11_over = newImage("images/navbar_11-over.png");
		navbar_13_over = newImage("images/navbar_13-over.png");
		navbar_14_over = newImage("images/navbar_14-over.png");
		navbar_16_over = newImage("images/navbar_16-over.png");
		navbar_17_over = newImage("images/navbar_17-over.png");
		navbar_19_over = newImage("images/navbar_19-over.png");
		preloadFlag = true;
	}
}