var netscape = document.getElementById ? 1 : 0;
var ie = document.all ? 1 : 0;
var netscapealt = document.layers ? 1 : 0;

//Interaktive Funktion für die Navigationsfelder
function showLayer(name)
{
	if(netscape) 
		document.getElementById(name).style.visibility = "visible";
	else if (ie)
		document.getElementById[name].style.visibility = "visible";
	else if (netscapealt)
	document.layers[name].visibility = "show";
	}
function hideLayer(name)
	{
	if(netscape) 
		document.getElementById(name).style.visibility = "hidden";
	else if (ie)
		document.getElementById[name].style.visibility = "hidden";
	else if (netscapealt)
		document.layers[name].visibility = "hide";
}




function kurzzeigen(FnTag2,Sprache) {
   var i = 0;
   var fnzahl=1;
   FnTag = FnTag2.parentNode.parentNode;
  
   //while (i < 9) {
   while (FnTag.childNodes[i] != null && FnTag.childNodes[i] !== "") {
   	  if (FnTag.childNodes[i].className == "kurzbeschreibung" && Sprache == "Deutsch") {
   	   /*  	  
   	      alert(FnTag.childNodes[i].className + FnTag.childNodes[i].tagName + FnTag.childNodes[i].firstChild.value);
   	  	  FnTag.childNodes[i].display="block";
   	  	  FnTag.childNodes[i].visibility="hide";
   	 if (FnTag.childNodes[i].style.display != "" && FnTag.childNodes[i].style.display != "none"){
  			alert(FnTag.childNodes[i].style.display);
  			FnTag.childNodes[i].style.display="none";
   	  	   }
   	 */
      	 if (FnTag.childNodes[i].style.display=="block") {
         	FnTag.childNodes[i].style.display="none";
         }
         else  {
         	FnTag.childNodes[i].style.display="block";
          }
     }
     else if (FnTag.childNodes[i].className == "kurzbeschreibung_e" && Sprache == "English") {
       if (FnTag.childNodes[i].style.display=="block") {
         	FnTag.childNodes[i].style.display="none";
         }
         else  {
    	 FnTag.childNodes[i].style.display="block";
    	 }
     }
   i++;
   }
}
//falls Javascript aktiviert ist, kann man alle intaktiven Felder ausblenden. Deshalb Platz sparen und den Inhalt nach oben rücke
function wechseln() {
	document.getElementById("inhalt").style.top="-70px";
	document.getElementById("fuss").style.top="-70px";
	var i = 0;
     while (document.getElementsByTagName("div")[i] != null) {
      //die Abstracts werden ausgeblendet
     if (document.getElementsByTagName("div")[i].className == "kurzbeschreibung" || document.getElementsByTagName("div")[i].className == "kurzbeschreibung_e") {
     	document.getElementsByTagName("div")[i].style.display="none";
       }
     //die Navigationsfelder unsichtbar gemacht, Bei Ausblendung (dissply:none) verschwindet das ganze navmenue??
     if (document.getElementsByTagName("div")[i].className == "navmenuefeld"){
     	document.getElementsByTagName("div")[i].style.visibility="hidden";
   		//document.getElementById("navmenue").style.display="none";
     }
   i++;
   }
}
 function Abschicken()
 {
  document.Form_einzelne.submit();
 }