var curMenu = "";
var curLi = "";

function showmenu(menu,li)
{

  if (curMenu.length > 0)
  {
    hidemenu(curMenu,curLi);
  }

  showitem(menu);
  document.getElementById(li).style.background='#4b6945';
  
  curMenu = menu;
  curLi = li;
}

function hidemenu(menu,li)
{
  hideitem(menu);
  document.getElementById(li).style.background='#295229';
}