function initNavigation() {
	$('#navigation ul').hide();


	$('#navigation li a').click(function(){
        return $.sliderMenu(this);
	});

	var activeMenu = $('#menu_id_'+$.urlParam('menu'));
	if(activeMenu != ''){
    	return $.sliderMenu(activeMenu);
	}

}

$.urlParam = function(name){
	var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href);
	if(results){
		return results[1];
	}
	return 0;
}

$.sliderMenu = function(el){
	el = $(el).next();
	if((el.is('ul')) && (el.is(':visible'))) {
		$('#navigation ul:visible').slideDown('normal');
		el.slideUp('normal');
		return false;
	}
	if((el.is('ul')) && (!el.is(':visible'))) {
		$('#navigation ul:visible').slideUp('normal');
		el.slideDown('normal');
		return false;
	}
}