function showNavMake()
{
  document.getElementById('divNavMake').style.display = "block";
}
function hideNavMake() { document.getElementById('divNavMake').style.display = "none"; }
function showMenu(category)
{
  for(count=0;count<=numCategories;count++) { document.getElementById('divNav'+count).style.display = "none"; }
  if (category <= numCategories)
  {
    var newHeight = (category)*21;
    if (category == 0) { newHeight += 34; } else { newHeight += 54; }
    if (newHeight < 1) { newHeight=1; }
    document.getElementById('divNavImg').style.height = newHeight;
    document.getElementById('divNav'+category).style.display = "block";
    document.getElementById('divNav').style.display = "block";
  }
  else { document.getElementById('divNav').style.display = "none"; }
}
function hideMenu() { document.getElementById('divNav').style.display = "none"; }
var navTimer;
function beginHideMake() { clearTimeout(navTimer); navTimer = setTimeout('hideNavMake()',500); }
function resetHideMake() { clearTimeout(navTimer); }
function beginHideMenu() { clearTimeout(navTimer); navTimer = setTimeout('hideMenu()',500); }
function resetHideMenu() { clearTimeout(navTimer); }