function add_span_to_ul() { 
         var main_menu_li = $$('#ja-cssmenu li.vision');
         var menu_width = 0;
         for (var i=0;i<main_menu_li.length;i++) {
              //console.log(main_menu_li[i].offsetWidth);              
              //console.log(main_menu_li[i].innerHTML);              
              menu_width += main_menu_li[i].offsetWidth;
         }
         $('ja-cssmenu').setStyle('width',menu_width + 'px');
   }
   window.addEvent('domready',add_span_to_ul);