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  five.src = "pics/res.jpg";
  
  more_dogs_normal = new Image();
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  more_dogs = new Image();
  more_dogs.src = "pics/hunde_button2_darker.jpg";
  
  way_normal = new Image();
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  way = new Image();
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function Bildwechsel(bildnr, bildobjekt)
  {
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function change()
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function set_optional()
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    if(document.all.besonderheiten.value=="")
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    if(document.all.besonderheiten_3.value=="")
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function clear_optional()
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    if(document.all.plz.value=="optional")
      document.all.plz.value=" ";
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