layout:{
     type:'Menu',
     rightOf:'leftMenu'
 },
 children:[
     {
         html:'Games',
         children:[
             { html:'Console games',
                 children:['XBox 360',
                     {
                         html:'Wii U',
                         children:['NintendoLand', 'Batman Arkham City', 'SuperMario Wii U']
                     }, 'PlayStation']},
             'PC Games',
             'Mac Games',
             'Mobile games'
         ]
     },
     'Apps',
     'Utilities'
 ],
 listeners:{
    'click' : function(item){
        console.log('You clicked ' + item.html);
    }
 }