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) {
		vision_over = newImage("images/vision-over.gif");
		outMission_over = newImage("images/outMission-over.gif");
		aboutUs_over = newImage("images/aboutUs-over.gif");
		memberships_over = newImage("images/memberships-over.gif");
		students_over = newImage("images/students-over.gif");
		assouciates_over = newImage("images/assouciates-over.gif");
		consultants_over = newImage("images/consultants-over.gif");
		representatives_over = newImage("images/representatives-over.gif");
		executives_over = newImage("images/executives-over.gif");
		links_over = newImage("images/links-over.gif");
		pressReleases_over = newImage("images/pressReleases-over.gif");
		contactUs_over = newImage("images/contactUs-over.gif");
		guMailBox_over = newImage("images/guMailBox-over.gif");
		preloadFlag = true;
	}
}