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_on.gif");
		details_over = newImage("images/details_on.gif");
		faq_over = newImage("images/faq_on.gif");
		procedures_over = newImage("images/procedures_on.gif");
		profile_over = newImage("images/profile_on.gif");
		policies_over = newImage("images/policies_on.gif");
		appointments_over = newImage("images/appointments_on.gif");
		contact_over = newImage("images/contact_on.gif");
		forms_over = newImage("images/forms_on.gif");
		preloadFlag = true;
	}
}