function event_windowopen(url){
	window.open(url,'pic','toolbar=0,location=0,directories=0,statusbat=0,menubar=0,scrollbars=0,resizable=1,width=560,height=580');
}

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) {
		home		= newImage("images/btn_home_over_038x017.gif");
		books		= newImage("images/btn_books_over_165x017.gif");
		events		= newImage("images/btn_events_over_051x017.gif");
		news		= newImage("images/btn_news_over_039x017.gif");
		archive		= newImage("images/btn_archive_over_061x017.gif");
		about		= newImage("images/btn_about_over_078x017.gif");
		submissions	= newImage("images/btn_submissions_over_097x017.gif");
		add_to_cart	= newImage("images/btn_add_to_cart_over_069x023.gif");
		view_cart	= newImage("images/btn_view_cart_over_069x023.gif");
	preloadFlag = true;
	}
}