var ThemaAlt="";
function load_images1(dateiname)
{
  Img1            = new Array(3)
  Img1["an"]      = new Image()
  Img1["an"].src  = dateiname + "_an.gif"
  Img1["aus"]     = new Image()
  Img1["aus"].src = dateiname + "_aus.gif"
  Img1["ist"]     = new Image()
  Img1["ist"].src = dateiname + "_ist.gif"
}

// Bild zeigen
function show_image1(name)
{
  if(name != ThemaAlt){ document[name].src = Img1["an"].src;}
}

// Bild verstecken
function hide_image1(name)
{ if(name != ThemaAlt){  document[name].src = Img1["aus"].src;}
}
//Bei Themenwechsel
function wechsel(name)
{
  document[name].src = Img1["ist"].src;
  if(ThemaAlt != "" && name != ThemaAlt){  document[ThemaAlt].src = Img1["aus"].src;}
  ThemaAlt = name;
}

load_images1("../bilder/pf")