function hide(id) {
  var menuItems = document.getElementById(id+"_items");
  menuItems.className = "menuItemListHidden";
  var menu = document.getElementById(id);
  menu.style.backgroundImage="url(/clients/theatresevenofchicago/images/"+id+"_unclicked.gif)";
  menu.style.backgroundRepeat="no-repeat";
}

function show(id) {
  var menuItems = document.getElementById(id+"_items");
  menuItems.className = "menuItemList";
  var menu = document.getElementById(id);
  menu.style.backgroundImage="url(/clients/theatresevenofchicago/images/"+id+"_clicked.gif)";
  menu.style.backgroundRepeat="no-repeat";
}