function highlight(number)
{
  fold = document.getElementById("menu-item-" + number);
  /*fold.style.backgroundPositon = "0 0";*/
  /*fold.style.background = "none";*/
  fold.style.backgroundPosition = '0 0';
  /*alert(fold.style.display);*/
}

function lowlight(number)
{
  fold = document.getElementById("menu-item-" + number);
  fold.style.backgroundPosition = '0 50px';
  
}

function subhighlight(number)
{
  fold = document.getElementById("submenu-item-" + number);
  fold.style.backgroundPosition = '0 0';
}

function sublowlight(number)
{
  fold = document.getElementById("submenu-item-" + number);
  fold.style.backgroundPosition = '0 55px';
  
}