isNetscape = (navigator.appName.indexOf("Netscape") >= 0);
isExplorer = (navigator.appName.indexOf("Explorer") >= 0);
roll_supported = (parseInt(navigator.appVersion) >= 3 && (isExplorer || isNetscape));
active_menu = 0;

function over(img) {
	if (roll_supported) {
		document.images['i'+img].src = "/images/nav/" + img + "_over.gif";
	}
}

function out(img) {
	if (roll_supported) {
		document.images['i'+img].src = "/images/nav/" + img + ".gif";
	}
}

function preload_all() {
	preload("/images/nav/{00000000-0000-0000-0000-000000000000}_over.gif");
	preload("/images/nav/{00000000-0000-0000-0000-000000000001}_over.gif");
	preload("/images/nav/{00000000-0000-0000-0000-000000000002}_over.gif");
	preload("/images/nav/{00000000-0000-0000-0000-000000000003}_over.gif");
	preload("/images/nav/{00000000-0000-0000-0000-000000000004}_over.gif");
	preload("/images/nav/forum_over.gif");
	preload("/images/nav/wine_over.gif");
}

function preload(img) {
	load = new Image;
	load.src = img;
}

preload_all();