// JavaScript for rollover buttons
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 (document.images) {
	rb1 = newImage("images/b_home-over.gif");	rb11 = newImage("images/b_home.gif");
	rb2 = newImage("images/b_about-over.gif"); 	rb21 = newImage("images/b_about.gif");
	rb3 = newImage("images/b_services-over.gif"); 	rb31 = newImage("images/b_services.gif");
	rb4 = newImage("images/b_testimonials-over.gif"); 	rb41 = newImage("images/b_testimonials.gif");
	rb5 = newImage("images/b_contact-over.gif"); 	rb51 = newImage("images/b_contact.gif");
	preloadFlag = true;
	}
}