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) {
		Home_over = newImage("images/Home-over.jpg");
		Meet_Us_over = newImage("images/Meet-Us-over.jpg");
		Patient_Information_over = newImage("images/Patient-Information-over.jpg");
		Procedures_over = newImage("images/Procedures-over.jpg");
		Dental_Implants_over = newImage("images/Dental-Implants-over.jpg");
		Pediatric_Dentistry_over = newImage("images/Pediatric-Dentistry-over.jpg");
		Oral_Health_over = newImage("images/Oral-Health-over.jpg");
		Referral_Program_over = newImage("images/Referral-Program-over.jpg");
		Resources_over = newImage("images/Resources-over.jpg");
		Contact_Us_over = newImage("images/Contact-Us-over.jpg");
		preloadFlag = true;
	}
}