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("sidebar/Home-over.jpg");
		Meet_Us_Home_over = newImage("sidebar/Meet-Us-Home_over.jpg");
		Meet_Us_over = newImage("sidebar/Meet-Us-over.jpg");
		Patient_Information_Meet_Us_over = newImage("sidebar/Patient-Information-Meet-Us.jpg");
		Patient_Information_over = newImage("sidebar/Patient-Information-over.jpg");
		Demtal_Implants_over = newImage("sidebar/Demtal-Implants-over.jpg");
		Periodontal_Disease_over = newImage("sidebar/Periodontal-Disease-over.jpg");
		Periodontal_Disease_Demtal_Implants_over = newImage("sidebar/Periodontal-Disease-Demtal-.jpg");
		Procedures_Periodontal_Disease_over = newImage("sidebar/Procedures-Periodontal-Dise.jpg");
		Procedures_over = newImage("sidebar/Procedures-over.jpg");
		Consequences_Procedures_over = newImage("sidebar/Consequences-Procedures_ove.jpg");
		Consequences_over = newImage("sidebar/Consequences-over.jpg");
		Questions_over = newImage("sidebar/Questions-over.jpg");
		Useful_Links_over = newImage("sidebar/Useful-Links-over.jpg");
		Contact_Us_over = newImage("sidebar/Contact-Us-over.jpg");
		preloadFlag = true;
	}
}