//navigation - tk

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) {
		drd_Home_over = newImage("img/drd-Home-over.gif");
		drd_Creative_over = newImage("img/drd-Creative-over.gif");
		drd_CaseStudies_over = newImage("img/drd-CaseStudies-over.gif");
		drd_Team_over = newImage("img/drd-Team-over.gif");
		drd_Contact_over = newImage("img/drd-Contact-over.gif");
		drd_AboutUs_over = newImage("img/drd-AboutUs-over.gif");
		preloadFlag = true;
	}
}

//end navigation