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_about_us_over = newImage("images/nav-about-us-over.gif");
		nav_history_over = newImage("images/nav-history-over.gif");
		nav_issues_over = newImage("images/nav-issues-over.gif");
		nav_links_over = newImage("images/nav-links-over.gif");
		nav_contact_over = newImage("images/nav-contact-over.gif");
		member_login_over = newImage("images/member-login-over.gif");
		square_grey_nav_about_us_over = newImage("images/square-grey-nav-about-us_ov.gif");
		square_lgtpurple_nav_history_over = newImage("images/square-lgtpurple-nav-histor.gif");
		square_yellow_nav_issues_over = newImage("images/square-yellow-nav-issues_ov.gif");
		square_rust_nav_links_over = newImage("images/square-rust-nav-links_over.gif");
		square_purple_nav_contact_over = newImage("images/square-purple-nav-contact_o.gif");
		nav_join_over = newImage("images/nav-join-over.gif");
		nav_members_over = newImage("images/nav-members-over.gif");
		nav_mtgs_over = newImage("images/nav-mtgs-over.gif");
		preloadFlag = true;
	}
}