function submenuNav(show)  {
  //hide navs
  changeNav("subnavHome", 0);
  changeNav("subnavTemplates", 0);
  changeNav("subnavStockphotos", 0);
  changeNav("subnavFonts", 0);
  changeNav("subnavResources", 0);

  //show nav
   changeNav("subnav"+show, 1);
}

function changeNav(nav, show)  {
  var e = document.getElementById(nav);

  if(show == 1)  {
    e.className = "";
  }
  else  {
    e.className = "hide";
  }
}