<!--
var roll_ok = (is_ie4up || is_nav6up);

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)&& (roll_ok == 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) {
		crest_over = newImage("images/mono-crest-dark.gif");
            shield_over = newImage("images/shields_lit.jpg");
		navigation_01_over = newImage("images/navigation3_01-over.gif");
		navigation_02_over = newImage("images/navigation3_02-over.gif");
		navigation_03_over = newImage("images/navigation3_03-over.gif");
		navigation_04_over = newImage("images/navigation3_04-over.gif");
		navigation_05_over = newImage("images/navigation3_05-over.gif");
		preloadFlag = true;
	}
}

// -->