lastmenu    =   "common";

         function doMenuTree(id)
         {

             if(document.getElementById(id).style.display == 'none')
             {
               document.getElementById(id).style.display = 'block';
             } else {
               document.getElementById(id).style.display = 'none';
             }
             if (document.getElementById(lastmenu) != null)
             {
                document.getElementById(lastmenu).style.display = "none";
             }
             lastmenu = id;
             return false;
         }


         lastnavi    =   "tmp";

         function doNaviTree(id, mpack)
         {

             if(document.getElementById(id).style.display == 'none')
             {
               document.getElementById(id).style.display = 'block';
             } else {
               document.getElementById(id).style.display = 'none';
             }
/*             if (document.getElementById(lastnavi) != null)
             {
                document.getElementById(lastnavi).style.display = "none";
             }*/
             lastnavi = id;
             //top.content.location.href = '?page=pack_ranking&mpack=' + mpack;
             return false;

         }