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) {
		nav_home_over = newImage("/files/nav_home-over.jpg");
		nav_calendar_over = newImage("/files/nav_calendar-over.jpg");
		nav_roster_over = newImage("/files/nav_roster-over.jpg");
		nav_photos_over = newImage("/files/nav_photos-over.jpg");
		nav_history_over = newImage("/files/nav_history-over.jpg");
		nav_awards_over = newImage("/files/nav_awards-over.jpg");
		nav_store_over = newImage("/files/nav_store-over.gif");
		nav_about_over = newImage("/files/nav_about-over.jpg");
		nav_membership_over = newImage("/files/nav_membership-over.jpg");
		nav_news_over = newImage("/files/nav_news-over.jpg");
		nav_goals_over = newImage("/files/nav_goals-over.jpg");
		nav_testing_over = newImage("/files/nav_testing-over.jpg");
		nav_handouts_over = newImage("/files/nav_handouts-over.jpg");
		nav_practices_over = newImage("/files/nav_practices-over.jpg");
		nav_stats_over = newImage("/files/nav_stats-over.jpg");
		preloadFlag = true;
	}
}