/* DHTML-Bibliothek
Quelle: selfhtml.org, Stefan Muenz, Version 8.1.1 vom 20051124
        uebernommen am 20060729

An eigene Beduerfnisse angepasst: 20060729/Ww
*/

var DHTML = false, DOM = false, MSIE4 = false, NS4 = false, OP = false;
var EDITABLEONFOCUS = false

// Pruefungen gemaess Quelle
//
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;
}


// Unterscheidung fuer "onfocus"-Attribut aenderbar?
//
EDITABLEONFOCUS = true;
if( navigator.appName.toLowerCase().match( /microsoft/)
 || navigator.appName.toLowerCase().match( /internet explorer/)
) {
  EDITABLEONFOCUS = false;
}
//alert( ">>> " + EDITABLEONFOCUS);


// Funktionen, gemaess Quelle, teilweise angepasst
//
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 (Element, AttributeName) {
//function getAttribute (Mode, Identifier, ElementNumber, AttributeName) {
  var Attribute;
  //var Element = getElement(Mode, Identifier, ElementNumber);
  if (!Element) {
    return false;
  }

  if( AttributeName.toLowerCase() == "class") {
    if( navigator.appName.toLowerCase().match( /microsoft/ ) ) {
      return Element.className;
    }
  }

  if (DOM || MSIE4) {
    Attribute = Element.getAttribute(AttributeName);
    return Attribute;
  }
  if (NS4) {
    Attribute = Element[AttributeName]
    if (!Attribute) {
       Attribute = false;
    }
    return Attribute;
  }
  return false;
}


function setAttribute (Element, AttributeName, Text) {
  if (!Element) {
    return false;
  }

  if( AttributeName.toLowerCase() == "class") {
    if( navigator.appName.toLowerCase().match( /microsoft/ ) ) {
      Element.className = Text;
      return;
    }
  }

  if (DOM || MSIE4) {
    Element.setAttribute(AttributeName, Text);
  }
  if (NS4) {
    Element[AttributeName] = Text;
  }
  return false;
}


function getContent (Element) {
//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 (Element, Text) {
//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;
  }
}