// Fastrack navigation

userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	
	if (preloadFlag == false) {
	Image6= new Image(436,145);
	Image6.src = "images/fastrack_logo.gif";
	Image3= new Image(805,174);
	Image3.src = "images/bg_road.jpg";
	Image4= new Image(190,150,500);

	Image1= new Image(79,75);
	Image1.src = "images/ase_certified.gif";

	
	Image4.src = "images/carwash.jpg";
	Image5= new Image(20,22);
	Image5.src = "images/checkmark.jpg";

	Image2= new Image(499,500);
	Image2.src = "images/bg_gears.gif";

	
	}
	
	
	if (document.images) {
		navigation_01_over = newImage("images/navigation_01-over.jpg");
		navigation_02_over = newImage("images/navigation_02-over.jpg");
		navigation_03_over = newImage("images/navigation_03-over.jpg");
		navigation_04_over = newImage("images/navigation_04-over.jpg");
		navigation_05_over = newImage("images/navigation_05-over.jpg");
		navigation_06_over = newImage("images/navigation_06-over.jpg");
		preloadFlag = true;
	}
}