function anzeige_ref()
{
  var jetzt = new Date();
  var Sekunden = jetzt.getSeconds();
  if(Sekunden <= 30)
  {
 document.writeln("<img src='bilder/ref_ornito.jpg' width=160 height=120 border=0><br><br>");
 document.writeln("<img src='bilder/ref_medora.jpg' width=160 height=120 border=0><br><br>");	
 document.writeln("<img src='bilder/ref_bogasse.jpg' width=160 height=120 border=0><br>");
  }
 else
 {
   document.writeln("<img src='bilder/ref_body.jpg' width=160 height=120 border=0><br><br>");	
  document.writeln("<img src='bilder/ref_gsm.jpg' width=160 height=120 border=0><br><br>");	
  document.writeln("<img src='bilder/ref_heinemann.jpg' width=160 height=120 border=0><br>");
 }
}


function openwin(url,w,h,name)
{
var f_name = name
var f_opt ='top=0,left=0,resizable=no,scrollbars=yes,width=' +w+',height='+h+"'"
window.open(url,f_name,f_opt)
}

function quickfind(x) {
 if(x == "nothing") {
   document.form1[0].reset();
   document.form1[0].elements[0].blur();
   return;
 }
 else 
{
   location.href = x;   
 }
}

function checkform() {
     if(document.Formular.name.value == "")
     {
     alert("Bitte geben Sie Ihren Namen ein");
     document.Formular.name.focus();
     return false;
     }
      if(document.Formular.email.value != "")
     {
		if((document.Formular.email.value.indexOf('@') == -1) || (document.Formular.email.value.indexOf('.') == -1) || (document.Formular.email.value.length < 6))
		{
		alert("Bitte geben Sie eine gültige eMail-Adresse ein");
		document.Formular.email.focus();
		return false;
		}
	 }
     if(document.Formular.mitteilung.value == "")
     {
     alert("Bitte geben Sie Ihre Mitteilung ein");
     document.Formular.mitteilung.focus();
     return false;
     }
}


function ZeitAnzeigen() {
var Wochentagname =  new Array("Sonntag","Montag","Dienstag","Mittwoch","Donnerstag","Freitag","Samstag");

 var Jetzt = new Date();
 var Tag = Jetzt.getDate();
 var Monat = Jetzt.getMonth() + 1;
 var Jahr = Jetzt.getYear();
 if(Jahr < 999) Jahr += 1900;
 var Stunden = Jetzt.getHours();
 var Minuten = Jetzt.getMinutes();
 var Sekunden = Jetzt.getSeconds();
 var WoTag = Jetzt.getDay();
 var Vortag  = ((Tag < 10) ? "0" : "");
 var Vormon  = ((Monat < 10) ? ".0" : ".");
 var Vorstd  = ((Stunden < 10) ? "0" : "");
 var Vormin  = ((Minuten < 10) ? ":0" : ":");
 var Vorsek  = ((Sekunden < 10) ? ":0" : ":");
 var Datum = Vortag + Tag + Vormon + Monat  + "." + Jahr;
 var Uhrzeit = Vorstd + Stunden + Vormin + Minuten + Vorsek + Sekunden;
 var Gesamt = Wochentagname[WoTag] + ", " + Datum + " Zeit: " + Uhrzeit;

 if(DHTML) {
   if(NS) setCont("id","Uhr",null,"<span class=\"Uhr\">" + Gesamt + "<\/span>");
   else   setCont("id","Uhr",null,Gesamt);
 }
 else return;

 window.setTimeout("ZeitAnzeigen()",1000);
}

/* DHTML-Bibliothek */

var DHTML = 0, DOM = 0, MS = 0, NS = 0, OP = 0;

function DHTML_init() {

 if (window.opera) {
     OP = 1;
 }
 if(document.getElementById) {
   DHTML = 1;
   DOM = 1;
 }
 if(document.all && !OP) {
   DHTML = 1;
   MS = 1;
 }
if(document.layers && !OP) {
   DHTML = 1;
   NS = 1;
 }
}

function getElem(p1,p2,p3) {
 var Elem;
 if(DOM) {
   if(p1.toLowerCase()=="id") {
     if (typeof document.getElementById(p2) == "object")
     Elem = document.getElementById(p2);
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="name") {
     if (typeof document.getElementsByName(p2) == "object")
     Elem = document.getElementsByName(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="tagname") {
     if (typeof document.getElementsByTagName(p2) == "object" || (OP && typeof document.getElementsByTagName(p2) == "function"))
     Elem = document.getElementsByTagName(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
 else if(MS) {
   if(p1.toLowerCase()=="id") {
     if (typeof document.all[p2] == "object")
     Elem = document.all[p2];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="tagname") {
     if (typeof document.all.tags(p2) == "object")
     Elem = document.all.tags(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="name") {
     if (typeof document[p2] == "object")
     Elem = document[p2];
     else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
 else if(NS) {
   if(p1.toLowerCase()=="id" || p1.toLowerCase()=="name") {
   if (typeof document[p2] == "object")
     Elem = document[p2];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="index") {
    if (typeof document.layers[p2] == "object")
     Elem = document.layers[p2];
    else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
}

function getCont(p1,p2,p3) {
   var Cont;
   if(DOM && getElem(p1,p2,p3) && getElem(p1,p2,p3).firstChild) {
     if(getElem(p1,p2,p3).firstChild.nodeType == 3)
       Cont = getElem(p1,p2,p3).firstChild.nodeValue;
     else
       Cont = "";
     return(Cont);
   }
   else if(MS && getElem(p1,p2,p3)) {
     Cont = getElem(p1,p2,p3).innerText;
     return(Cont);
   }
   else return void(0);
}

function getAttr(p1,p2,p3,p4) {
   var Attr;
   if((DOM || MS) && getElem(p1,p2,p3)) {
     Attr = getElem(p1,p2,p3).getAttribute(p4);
     return(Attr);
   }
   else if (NS && getElem(p1,p2)) {
       if (typeof getElem(p1,p2)[p3] == "object")
        Attr=getElem(p1,p2)[p3][p4]
       else
        Attr=getElem(p1,p2)[p4]
         return Attr;
       }
   else return void(0);
}

function setCont(p1,p2,p3,p4) {
   if(DOM && getElem(p1,p2,p3) && getElem(p1,p2,p3).firstChild)
     getElem(p1,p2,p3).firstChild.nodeValue = p4;
   else if(MS && getElem(p1,p2,p3))
     getElem(p1,p2,p3).innerText = p4;
   else if(NS && getElem(p1,p2,p3)) {
     getElem(p1,p2,p3).document.open();
     getElem(p1,p2,p3).document.write(p4);
     getElem(p1,p2,p3).document.close();
   }
}

DHTML_init();