/*
In einem Input-Tag können die folgenden Aufrufe stehen, 
um auch in Netscape die gewünschte Funktionalität zu erreichen:
onkeypress="return noenter()"
onkeypress="return enter(document.<formname>.<feldname>)"
onkeypress="return entsub(event,this.form)"
*/

function noenter() {
  return !(window.event && window.event.keyCode == 13); 
}

function enter(nextfield) {
  if (event && event.which == 13)
    {
    nextfield.focus();
    return false; }
  else
    return true; 
}

function entsub(event,ourform) {
  if (event && event.which == 13)
    ourform.submit();
  else
    return true;}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_preloadImages() { //v3.0
  // Bilder für Bildwechsel vorladen
  var d=document;
  if(d.images)
  {
   if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0)
   {
    d.MM_p[j]=new Image;
    d.MM_p[j++].src=a[i];
   }
  }
}

function MM_findObj(n, d) { //v3.0
  var p,i,x;
  if(!d) d=document;
  if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n];
  for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_nbGroup(event, grpName) { //v3.0
  // Navigation mit Bildwechsel bei Mausaktionen
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2)
  {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init)
    {
      img.MM_init = true;
      img.MM_up = args[3];
      img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null)
      {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
      }
    }
  }
  else if (event == "over")
  {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null)
    {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
      nbArr[nbArr.length] = img;
    }
  }
  else if (event == "out" )
  {
    for (i=0; i < document.MM_nbOver.length; i++)
    {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up;
    }
  }
  else if (event == "down")
  {
    if ((nbArr = document[grpName]) != null)
    for (i=0; i < nbArr.length; i++)
    {
     img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0;
    }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null)
    {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
    }
  }
}

function MM_showHideLayers_ListboxSync(){ //v3.0
  // Layer ein- und ausblenden
  var i,p,v,obj,args=MM_showHideLayers_ListboxSync.arguments;
  
  top.focus ();
  if(navigator.appName == "Netscape" ) //&& navigator.appVersion.substr(0,1) == "4")
  {
		document.auswahlkriterien.document.forms[0].elements[0].selectedIndex = 0;
		for (i=0; i<(args.length-2); i+=3)
		{
			if ((obj=MM_findObj(args[i]))!=null)
			{
				v=args[i+2];
				if (obj)
				{
					if (v == 'show')
					{
						document.auswahlkriterien.document.forms[0].elements[0].selectedIndex = args[i+1];
					}
				}
				obj.visibility=v;
			}
		}
	}
	else if(navigator.appName == "Microsoft Internet Explorer")
  {
		document.forms[0].elements[0].selectedIndex = 0;	
		for (i=0; i<(args.length-2); i+=3)
		{
			if ((obj=MM_findObj(args[i]))!=null)
			{
				v=args[i+2];
				if (obj.style)
				{
					obj=obj.style;
					v=(v=='show')?'visible':(v='hide')?'hidden':v;
         	if (v == 'visible')
					{
						document.forms[0].elements[0].selectedIndex = args[i+1];
					}
				}
				obj.visibility=v;
			}
		}
  }
}

function MM_showHideLayers() 
{ //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  
  for (i=0; i<(args.length-2); i+=3)
  {
  	if ((obj=MM_findObj(args[i]))!=null) 
  	{ 
  		v=args[i+2];
    	if (obj.style) 
    	{ 
    		obj=obj.style; 
    		v=(v=='show')?'visible':(v='hide')?'hidden':v; 
    	}
    	obj.visibility=v; 
    }
	}
}

function switch_layer ()
	{
		var i,p,v,obj,args=switch_layer.arguments;
		
		if(navigator.appName == "Microsoft Internet Explorer")
		{
			for (i=0; i<(args.length-2); i+=3)
			{
				if ((obj=MM_findObj(args[i]))!=null)
				{
					if (obj.style)
					{
						obj=obj.style;
						if (obj.visibility == 'visible')
						{
							MM_showHideLayers (args[i],args[i+1],'hide');
						}
						else
						{
							MM_showHideLayers (args[i],args[i+1],'show');
						}
					}
				}
			}
		}
		else if(navigator.appName == "Netscape" && navigator.appVersion.substr(0,1) == "4")
		{
			for (i=0; i<(args.length-2); i+=3)
			{
				if ((obj=MM_findObj(args[i]))!=null)
				{
					if (obj)
					{
						if (obj.visibility == 'show')
						{
							MM_showHideLayers (args[i],args[i+1],'hide');
						}
						else
						{
							MM_showHideLayers (args[i],args[i+1],'show');
						}
					}
				}
			}
		}
	}

	function MM_swapImage() { //v3.0
		var i,j=0,x,a=MM_swapImage.arguments; 
		
		document.MM_sr=new Array; 
		for(i=0;i<(a.length-2);i+=3)
		{
			if ((x=MM_findObj(a[i]))!=null)
			{
				document.MM_sr[j++]=x;
				if(!x.oSrc) x.oSrc=x.src; 
				x.src=a[i+2];
			}
		}
	}
	
	function MM_swapImgRestore() { //v3.0
		var i,x,a=document.MM_sr;
		for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
		{
			x.src=x.oSrc;
		}
	}
	
function MM_reloadPage(init)   //reloads the window if Nav4 resized
{
  if (init==true) with (navigator) 
  {
		if ((appName=="Netscape")&&(parseInt(appVersion)==4)) 
		{
			document.MM_pgW=innerWidth;
			document.MM_pgH=innerHeight; 
			onresize=MM_reloadPage; 
		}
	}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) 
		location.reload();
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function open_glossar_klein (id){
  // Browserfenster mit spezifischer Größe öffnen

	var URL;
	var WindowName = "glossarklein";
	var parameters = "width=400 height=300,innerwidth=400,innerheight=300";
	
	URL = "glossar_klein.asp?"+id;
	
	MM_openBrWindow(URL,WindowName,parameters);
}

function open_infofenster (kid, vbgid, gid){
  // Browserfenster mit spezifischer Größe öffnen
	var URL;
	var WindowName = "Info";
	var parameters = "width=500 height=600,innerwidth=500,innerheight=600,scrollbars=yes,hotkeys=no,status=yes,resizable=yes";
	
	URL = "infofenster.asp?KreisId="+kid+"&VGemId="+vbgid+"&GemId="+gid;
	
	MM_openBrWindow(URL,WindowName,parameters);
}

function isNetscapefour (){
  // Checken ob netscape 4
	if(navigator.appName == "Netscape" && navigator.appVersion.substr(0,1) == "4")
	{
		return true;
	}
	else
	{
		return false;
	}
}

function check_fs (URL){
  // Check if Frameset ist loaded
  // and reload top frame if necessary
	if(top.frames.length < 1) top.location.href=URL;
}