function activateMenues(def) {
	items = $$('ul#menu li a');

	for(i = 0; i < items.length; i++) {
		items[i].onclick = function() {
			//hideAllMenues(this.href.substr(this.href.indexOf('#submenu')+8, 1));
			var submenu = $('submenu'+this.href.substr(this.href.indexOf('#submenu')+8, 1));
			window.location.href = submenu.down().down().href;
			return false;
		}
		
	}

	hideAllMenues(def);

}

function hideAllMenues(except) {
	for(i = 1; i <= 4; i++) {
	
		if(i == except)	
			$('submenu'+i).style.display = 'block';
		else
			$('submenu'+i).style.display = 'none';
		
	}
}