// JavaScript Document
function Zurueck ()
{
	if (navigator.appName=="Netscape")
	{
		back();
	}
	else
	{
		if (navigator.appName=="Microsoft Internet Explorer")
		{
			history.back();
		}
		else
		{
			back();
		}
	}
}


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;
  }
}

function chkFormular () {
if (document.kontakt.name.value == "") {
    alert("Bitte verraten Sie uns Ihren Namen.");
    document.kontakt.name.focus();
    return false;
  }

if (document.kontakt.email.value == "") {
    alert("Bitte geben Sie Ihre E-Mail Adresse ein.");
    document.kontakt.email.focus();
    return false;
  }
if (document.kontakt.nachricht.value == "") {
    alert("Bitte verraten Sie uns Ihr Anliegen im Feld 'Nachricht'.");
    document.kontakt.email.focus();
    return false;
  }
  if (document.kontakt.email.value.indexOf("@") == -1) {
    alert("Ihre E-Mail Adresse ist leider nicht richtig.");
    document.kontakt.email.focus();
    return false;
  }  
}



var CSSBuffer, doc = window.document;

function parseStylesheets() {
	var rules, sheet, sheets = doc.styleSheets;
	var bufferIndex = sheets.length;	
	var head = doc.getElementsByTagName('head')[0];
	var buffer = doc.createElement('style');

	buffer.setAttribute('media', 'screen');
	buffer.setAttribute('type', 'text/css');
	head.appendChild(buffer);
	CSSBuffer = sheets[bufferIndex];

	for(var i=0; i<sheets.length -1; i++) {
		sheet = sheets[i];
		if(!sheet.media || sheet.media == 'screen') {
			rules = sheet.rules;
			for(var j=0; j<rules.length; j++) {
				parseCSSRule(rules[j]);
			}
		}
	}
}
	function parseCSSRule(rule) {
		var select = rule.selectorText, style = rule.style.cssText;
		if(!select || !style || select.indexOf(':hover') < 0) return;
		var newSelect = select.replace(/\:hover/g, '.onHover');
		CSSBuffer.addRule(newSelect, style);
		
		var affected = select.replace(/\:hover.*$/g, '');
		var elements = getElementsBySelect(affected);
		for(var i=0; i<elements.length; i++) {
			if(elements[i].nodeName == 'A') continue;
			new HoverElement(elements[i]);
		}
	}

/**
 *	HoverElement
 *	-------------------------
 *	applies the hover
 */

function HoverElement(element) {
	if(element.isHoverElement) return;
	element.isHoverElement = true;
	element.attachEvent('onmouseover', 
		function() { element.className += ' onHover'; });

	element.attachEvent('onmouseout', 
		function() { element.className = element.className.replace(/onHover/g, ''); });
}

/**
 *	domFinder
 *	-----------------------------------
 *	returns list of elements based on css selector
 */

function getElementsBySelect(rule) {
	var nodeList = [doc], sets = rule.split(' ');
	for(var i=0; i<sets.length; i++) {
		nodeList = domFinder.filterNodes(sets[i], nodeList);
	}	return nodeList;
}

var domFinder = {
	findNodes:function(tag, docs) {
		var res, nodes = [];
		for(var i=0; i<docs.length; i++) {
			res = docs[i].getElementsByTagName(tag);
			for(var j=0; j<res.length; j++) nodes[nodes.length] = res[j];
		}	return nodes;
	},

	filterNodes:function(select, docs) {
		var filtered = [], nodes,rule,atr,s = (/#|\./).exec(select);
		if(!s) return this.findNodes(select, docs);
		nodes = this.findNodes((rule = select.split(s))[0], docs);
		atr = (s == '#')? 'id':'className';
		for(var i=0; i<nodes.length; i++) {
			if(new RegExp('(^|\\s)' +  rule[1] + '(\\s|$)').exec(nodes[i][atr]))
				filtered[filtered.length] = nodes[i];
		}	return filtered;
	}
}

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;
  }
}
function Bild(cURL,cName,cWidth,cHight)
{
var cParams="width=" + cWidth + ",height=" + cHight + ",resizable=yes,scrollbars=no";
var cWindow = window.open(cURL,cName,cParams);
if (!cWindow.opener) c.Window.opener = self;
if (cWindow.focus != null) cWindow.focus();
}