window.addEvent('domready', function(){
	var glowne_menu = $$('#nav a img');
	var menu_par = $$('#nav a.parent');

	glowne_menu.each( function (element, key) {
		if (element.src.indexOf('_s') == -1) {
		
			$(element.parentNode).addEvents({
				'mouseover' : function () {
					var zrodlo = element.src;
					zrodlo = zrodlo.replace('_n', '_h');
					zrodlo = zrodlo.replace('ffc000', 'ffffff');
					element.src = zrodlo;
				},
				'mouseout' : function () {
					var zrodlo = element.src;
					zrodlo = zrodlo.replace('_h', '_n');
					zrodlo = zrodlo.replace('ffffff', 'ffc000');
					element.src = zrodlo;
				}
			});
		}
	});
	
	function closeAll () {
		menu_par.each(function(el){
			var sub = false;
			el.blur();
			if(sub = $(el.rel)){
				var zostaw = false;
				if (!$E('#'+el.rel+' a.selected')) {	zostaw = true;	}
				if (zostaw) {	sub.setStyle("display", "none");	}
			}	
		});
	}
	
	menu_par.each(function(el){
		el.onclick = function(){
			var sub = false;
			this.blur();
			if(sub = $(this.rel)){
				if(sub.getStyle("display") === "none"){
					closeAll();
					sub.setStyle("display", "block");
				}else{
					sub.setStyle("display", "none");
				}
				return false;
			}
			return true;
		}
	});
	
	closeAll();
	
});