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) {
		buttons_01_over = newImage("button_homepage_on.gif");
		buttons_02_over = newImage("button_about_on.gif");
		buttons_03_over = newImage("button_board_on.gif");
		buttons_04_over = newImage("button_demographics_on.gif");
		buttons_05_over = newImage("button_retail_on.gif");
		buttons_06_over = newImage("button_faqs_on.gif");
		buttons_07_over = newImage("button_news_on.gif");
		buttons_08_over = newImage("button_properties_on.gif");
		buttons_09_over = newImage("button_programs_on.gif");
		buttons_10_over = newImage("button_photos_on.gif");
		buttons_11_over = newImage("button_direct_on.gif");
		buttons_12_over = newImage("button_contact_on.gif");
		buttons_13_over = newImage("button_events_on.gif");
		buttons_14_over = newImage("button_monthly_on.gif");
		preloadFlag = true;
	}
}