function high ( pItem )
{
  pItem.style.backgroundImage = "url('images/menu_high.bmp')";
};

function low ( pItem )
{
  pItem.style.background = "url('images/menu_back_bottom.bmp')";
};

function show ( pItem, pPos )
{
  pItem.style.left = 69 + ( 109 * ( pPos - 1) );
};

function hide ( pItem )
{
  pItem.style.left = -1000;
};