norm = new Image();
norm.src = "img/button.gif";
hl = new Image();
hl.src = "img/button_hl.gif";

function bildw(id,Bildobjekt) {
        document.images[id].src = Bildobjekt.src;
}
/* ------------------------------------------------------------------------------------ */
function mail (pre, dom, end) {
document.write("test<a href='mailto:"+pre+"@"+dom+"."+end+"' style='color:#000000'>"+pre+"@"+dom+"."+end+"</a>");
}


function menuJump(targ,selObj,restore){
    eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");  //eval führt Operationen aus
    if (restore) {selObj.selectedIndex=0;}         //bei Aktualisieren Index=0, d.h. Element 0 wird ausgewählt
}
/* ------------------------------------------------------------------------------------ */

function Fensterweite () {
  if (window.innerWidth) {
    return window.innerWidth;
  } else if (document.body && document.body.offsetWidth) {
    return document.body.offsetWidth;
  } else {
    return 0;
  }
}

function Fensterhoehe () {
  if (window.innerHeight) {
    return window.innerHeight;
  } else if (document.body && document.body.offsetHeight) {
    return document.body.offsetHeight;
  } else {
    return 0;
  }
}

function neuAufbau () {
  if (Weite != Fensterweite() || Hoehe != Fensterhoehe())
    location.href = location.href;
}
/* ---------------------------------- Layer - (nicht) sichtbar ------------------------------------ */
function on (Bildnr,Bildnam) {
  if (document.getElementById)
    document.getElementById("popup").style.visibility = "visible";
    document.getElementById("bildGr").style.visibility = "visible";
	Init(Bildnr,Bildnam);
}
function off () {
  if (document.getElementById)
    document.getElementById("popup").style.visibility = "hidden";
    document.getElementById("bildGr").style.visibility = "hidden";
}

/* ---------------------------------- Bilder blättern ----------------------------------------------- */
/* DHTML-Bibliothek */
var DHTML = false, DOM = false, MSIE4 = false, NS4 = false, OP = false;

if (document.getElementById) {
  DHTML = true;
  DOM = true;
} else {
  if (document.all) {
    DHTML = true;
    MSIE4 = true;
  } else {
    if (document.layers) {
      DHTML = true;
      NS4 = true;
    }
  }
}
if (window.opera) {
  OP = true;
}

function getElement (Mode, Identifier, ElementNumber) {
  var Element, ElementList;
  if (DOM) {
    if (Mode.toLowerCase() == "id") {
      Element = document.getElementById(Identifier);
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    if (Mode.toLowerCase() == "name") {
      ElementList = document.getElementsByName(Identifier);
      Element = ElementList[ElementNumber];
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    if (Mode.toLowerCase() == "tagname") {
      ElementList = document.getElementsByTagName(Identifier);
      Element = ElementList[ElementNumber];
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    return false;
  }
  if (MSIE4) {
    if (Mode.toLowerCase() == "id" || Mode.toLowerCase() == "name") {
      Element = document.all(Identifier);
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    if (Mode.toLowerCase() == "tagname") {
      ElementList = document.all.tags(Identifier);
      Element = ElementList[ElementNumber];
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    return false;
  }
  if (NS4) {
    if (Mode.toLowerCase() == "id" || Mode.toLowerCase() == "name") {
      Element = document[Identifier];
      if (!Element) {
        Element = document.anchors[Identifier];
      }
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    if (Mode.toLowerCase() == "layerindex") {
      Element = document.layers[Identifier];
      if (!Element) {
        Element = false;
      }
      return Element;
    }
    return false;
  }
  return false;
}

function getAttribute (Mode, Identifier, ElementNumber, AttributeName) {
  var Attribute;
  var Element = getElement(Mode, Identifier, ElementNumber);
  if (!Element) {
    return false;
  }
  if (DOM || MSIE4) {
    Attribute = Element.getAttribute(AttributeName);
    return Attribute;
  }
  if (NS4) {
    Attribute = Element[AttributeName]
    if (!Attribute) {
       Attribute = false;
    }
    return Attribute;
  }
  return false;
}

function getContent (Mode, Identifier, ElementNumber) {
  var Content;
  var Element = getElement(Mode, Identifier, ElementNumber);
  if (!Element) {
    return false;
  }
  if (DOM && Element.firstChild) {
    if (Element.firstChild.nodeType == 3) {
      Content = Element.firstChild.nodeValue;
    } else {
      Content = "";
    }
    return Content;
  }
  if (MSIE4) {
    Content = Element.innerText;
    return Content;
  }
  return false;
}

function setContent (Mode, Identifier, ElementNumber, Text) {
  var Element = getElement(Mode, Identifier, ElementNumber);
  if (!Element) {
    return false;
  }
  if (DOM && Element.firstChild) {
    Element.firstChild.nodeValue = Text;
    return true;
  }
  if (MSIE4) {
    Element.innerText = Text;
    return true;
  }
  if (NS4) {
    Element.document.open();
    Element.document.write(Text);
    Element.document.close();
    return true;
  }
}
var bildbereich;
var zeige = 1;

function Blaettern (Richtung) {
  zeige = zeige + Richtung;
  if (zeige > Bild.length - 1) {
    zeige = 1;
  } else if (zeige < 0) {
    zeige = Bild.length - 1;
  }
  if (zeige==0){
	  zeige=15;
  }
  if (DOM && bildbereich.firstChild) {
    bildbereich.firstChild.src = Bild[zeige].src;
  } else if (MSIE4) {
    bildbereich.innerHTML = '<img src="' + Bild[zeige].src + '">';
  } else if (NS4) {
    bildbereich.visibility = "hide";
    setContent("id", "Bildbereich", null, '<img src="' + Bild[zeige].src + '">');
    bildbereich.visibility = "show";
  }
  document.getElementById("Bildname").firstChild.nodeValue = Name[zeige];
}

function Init (Bildnr) {
  bildbereich = getElement("id", "Bildbereich");
  bildbereich.firstChild.src = Bild[Bildnr].src;
  zeige=Bildnr;
  document.getElementById("Bildname").firstChild.nodeValue = Name[Bildnr];
}