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

function changeImages() {
	if (document.images) {
		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 (document.images) {
		home_over = newImage("images/home-over.png");
		gallery_over = newImage("images/gallery-over.png");
		Award_Winning_over = newImage("images/Award_Winning-over.png");
		Award_Winning_gallery_over = newImage("images/Award_Winning-gallery_over.png");
		hillside_gallery_over = newImage("images/hillside-gallery_over.png");
		hillside_over = newImage("images/hillside-over.png");
		waterfront_gallery_over = newImage("images/waterfront-gallery_over.png");
		waterfront_over = newImage("images/waterfront-over.png");
		aboutus_over = newImage("images/about-us-over.png");
		single_gallery_over = newImage("images/single-gallery_over.png");
		single_over = newImage("images/single-over.png");
		single_aboutus_over = newImage("images/single-about-us_over.png");
		Two_Storey_gallery_over = newImage("images/Two_Storey-gallery_over.png");
		Two_Storey_over = newImage("images/Two_Storey-over.png");
		awards_over = newImage("images/awards-over.png");
		construction_gallery_over = newImage("images/construction-gallery_over.png");
		construction_over = newImage("images/construction-over.png");
		contact_over = newImage("images/contact-over.png");
		preloadFlag = true;
	}
}