window.addEvent('domready',function(){
    var menu = $('menu');
    var li_arr = menu.getChildren('li');
    li_arr.addClass('first_level');

    li_arr.each(function(li_el)
    {
        li_el.addEvents({
            'mouseover':function()
            {
                this.addClass('firstlevel_hover');
                this.getChildren('ul').removeClass('levo_prelevo');
            },
            'mouseout':function()
            {
                this.removeClass('firstlevel_hover');
                this.getChildren('ul').addClass('levo_prelevo');
            }
        });
        var child = li_el.getChildren('ul');
        if(child.length > 0)
        {
            var child_ul = child[0];
            var level_2_li = child_ul.getChildren('li');

            this.rs_wdth = 0;
            level_2_li.each(function(li_2_el)
            {
                var sz = li_2_el.getSize();
                li_2_el.addClass('second_level').addEvents({
                    'mouseover' : function()
                    {
                        this.addClass('second_hover');
                    },
                    'mouseout' : function()
                    {
                        this.removeClass('second_hover');
                    }
                });
                if (sz.x > this.rs_wdth)
                {
                    this.rs_wdth = sz.x + 30;
                }
            });
            level_2_li.setStyle('width',this.rs_wdth);
            child_ul.addClass('levo_prelevo').addClass('secondlevel_ul');
        }
    });
});