function popUp(menu) {
 button = document.getElementById(menu);
 button.className = "menuExtended";
}

function popOut(menu){
 button = document.getElementById(menu);
 button.className = "menuHidden";
}
 
function changeMenuItemStyle(tdItem,aItem){
 
 cell = document.getElementById(tdItem);
 text = document.getElementById(aItem);
 
 
 if(cell.className == "menuItemOn"){
  cell.className = "menuItemOff";
 }
 else{
  cell.className = "menuItemOn";
 }
 
 if(text.className == "menuItemOn"){
  text.className = "menuItemOff";
 }
 else{
  text.className = "menuItemOn";
 } 
 
}