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) {
		about_over = newImage("images/b_aboutON.gif");
		news_over = newImage("images/b_newsON.gif");
		products_over = newImage("images/b_pubON.gif");
		education_over = newImage("images/b_affiliatesON.gif");
		links_over = newImage("images/b_hfpON.gif");
		policy_over = newImage("images/b_policyON.gif");
		jobs_over = newImage("images/b_jobsON.gif");
		members_over = newImage("images/b_hlinksON.gif");
		over1 = newImage("images/b_membersON.gif");
		over2 = newImage("images/b_fundingON.gif");
		
		preloadFlag = true;
	}
}