function Change(Bildnr,Bildobjekt)
  {
  	window.document.images[Bildnr].src = Bildobjekt.src;
  }
  function ChangeById(id,Bildobjekt,title)
  {
		if (Bildobjekt==null)
		{
			//mouseOut: alten Reiter einblenden
			document.getElementById(id).src = currentReiter;
		} else {
			//mouseOver: neuen Reiter einblenden, alten merken
			currentReiter = document.getElementById(id).src;
			document.getElementById(id).src = Bildobjekt.src;
		}
		if (title==null)
		{
			//mouseOut: alten Titel einblenden
			document.getElementById('titleMenue').src = currentTitle;
		} else {
			//mouseOver: neuen Titel einblenden, alten merken
			currentTitle = document.getElementById('titleMenue').src;
			document.getElementById('titleMenue').src = title.src;
		}
  }

  homeTitle = new Image(); homeTitle.src = "puzzle/title_home.gif";
  homeNorm = new Image(); homeNorm.src = "puzzle/piece_R5C2.gif";
  homeMark = new Image(); homeMark.src = "puzzle/piece_R5C2_m.gif";

  eventsTitle = new Image(); eventsTitle.src = "puzzle/title_events.gif";
  eventsNorm = new Image(); eventsNorm.src = "puzzle/piece_R5C3.gif";
  eventsMark = new Image(); eventsMark.src = "puzzle/piece_R5C3_m.gif";

  workshopsTitle = new Image(); workshopsTitle.src = "puzzle/title_workshops.gif";
  workshopsNorm = new Image(); workshopsNorm.src = "puzzle/piece_R5C4.gif";
  workshopsMark = new Image(); workshopsMark.src = "puzzle/piece_R5C4_m.gif";

  showroomTitle = new Image(); showroomTitle.src = "puzzle/title_showroom.gif";
  showroomNorm = new Image(); showroomNorm.src = "puzzle/piece_R5C5.gif";
  showroomMark = new Image(); showroomMark.src = "puzzle/piece_R5C5_m.gif";

  biographyTitle = new Image(); biographyTitle.src = "puzzle/title_biography.gif";
  biographyNorm = new Image(); biographyNorm.src = "puzzle/piece_R5C6.gif";
  biographyMark = new Image(); biographyMark.src = "puzzle/piece_R5C6_m.gif";

  pressTitle = new Image(); pressTitle.src = "puzzle/title_press.gif";
  pressNorm = new Image(); pressNorm.src = "puzzle/piece_R5C7.gif";
  pressMark = new Image(); pressMark.src = "puzzle/piece_R5C7_m.gif";

  musicshopTitle = new Image(); musicshopTitle.src = "puzzle/title_music-shop.gif";
  musicshopNorm = new Image(); musicshopNorm.src = "puzzle/piece_R5C8.gif";
  musicshopMark = new Image(); musicshopMark.src = "puzzle/piece_R5C8_m.gif";

  linksTitle = new Image(); linksTitle.src = "puzzle/title_links.gif";
  linksNorm = new Image(); linksNorm.src = "puzzle/piece_R5C9.gif";
  linksMark = new Image(); linksMark.src = "puzzle/piece_R5C9_m.gif";

  contactTitle = new Image(); contactTitle.src = "puzzle/title_contact.gif";
  contactNorm = new Image(); contactNorm.src = "puzzle/piece_R5C10.gif";
  contactMark = new Image(); contactMark.src = "puzzle/piece_R5C10_m.gif";

  var currentTitle = homeTitle.src;
  var currentReiter = homeNorm.src;