// 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) {
		nh_over = newImage("images/nh-over.gif");
		narea_over = newImage("images/narea-over.gif");
		nschools_over = newImage("images/nschools-over.gif");
		nproperty_over = newImage("images/nproperty-over.gif");
		nopen_over = newImage("images/nopen-over.gif");
		nagents_over = newImage("images/nagents-over.gif");
		nsellers_over = newImage("images/nsellers-over.gif");
		nbuyers_over = newImage("images/nbuyers-over.gif");
		ntools_over = newImage("images/ntools-over.gif");
		preloadFlag = true;
	}
}

// -->