function WM_preloadImages()
{ if (document.images) { document.WM = new Object; document.WM.WM_preloadImages = new Object; document.WM.WM_preloadImages.daImages = new Array;
  for(arg=0;arg<WM_preloadImages.arguments.length;arg++)
  { document.WM.WM_preloadImages.daImages[arg] = new Image; document.WM.WM_preloadImages.daImages[arg].src = WM_preloadImages.arguments[arg]; } } }

function WM_imageSwap(daImage, daSrc)
{ if(document.images){  if (typeof daImage == 'string' || typeof daImage == 'number') { document.images[daImage].src = daSrc; }
  else if (daImage && daImage.src) { daImage.src = daSrc; } } }

WM_preloadImages('images/nav_d_anreise_on.gif','images/nav_d_description_on.gif','images/nav_d_reservation_on.gif','images/nav_d_munich_info_on.gif','images/nav_e_reservation_on.gif','images/nav_e_description_on.gif','images/nav_e_munich_info_on.gif')