// JavaScript Document
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_theater_over = newImage("images/rollover/home-theater-over.gif");
		smart_home_over = newImage("images/rollover/smart-home-over.gif");
		structured_wiring_over = newImage("images/rollover/structured-wiring-over.gif");
		whole_house_a_v_over = newImage("images/rollover/whole-house-av-over.jpg");
		preloadFlag = true;
	}
}