function getCookieVal(offset)
{
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)
      endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
}
function GetCookie(name)
{
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;

   while(i < clen)
   {
      var j = i + alen;
      if (document.cookie.substring(i, j) == arg)
         return getCookieVal(j);
      i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0) break;
   }
   return null;
}
function SetCookie(name, value)
{
   // wird kein Datum mitgegeben, gilt der Keks nur heute
   var argv = SetCookie.arguments;
   var argc = SetCookie.arguments.length;
   var expires = (argc > 2) ? argv[2] : null;
   var path = (argc > 3) ? argv[3] : null;
   var domain = (argc > 4) ? argv[4] : null;
   var secure = (argc > 5) ? argv[5] : false;

   document.cookie = name + "=" + escape(value) +
      ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
      ((path == null) ? "" : ("; path=" + path)) +
      ((domain == null) ? "" : ("; domain=" + domain)) +
      ((secure == true) ? "; secure" : "");
}
function DeleteCookie(name)
{
   var exp = new Date();
   exp.setTime (exp.getTime() - 1);  // This cookie is history
   var cval = GetCookie(name);
   if( cval )
   {
      document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
   }
}
function IsNew(StandStr)
{
   var StandDate = new Date(StandStr);
   var DateStr = GetCookie("lastvisit");
   if( DateStr == null )
   {
      return true;
   }
   else
   {
      var LastDate = new Date(DateStr);
      if( StandDate.getTime() >= (LastDate.getTime()-24*60*60*1000) )
      {
         return true;
      }
   }
   return false;
}
function NewMarker(StandStr)
{
   var argv = NewMarker.arguments;
   var argc = NewMarker.arguments.length;
   var LeerPlatz = (argc > 1) ? argv[1] : true;
   if( IsNew(StandStr) )
   {
      document.write("<img src='../img/neu.gif' width='35' height='12' border='0' alt='Neu' />");
   }
   else
   {
      if( LeerPlatz )
         document.write("<img src='../img/alt.gif' width='35' height='12' border='0' alt='' />");
   }
}
function ShowIfNew(StandStr, MitBild, Text)
{
   if( IsNew(StandStr) )
   {
      if( MitBild == true )
         document.write("<img src='../img/neu.gif' width='35' height='12' border='0' alt='Neu'></img> ");
      document.write(Text);
   }
}
function SetLastVisit()
{
   var Datum = new Date();
   var expdate = new Date();
   expdate.setTime(expdate.getTime() + (24*60*60*1000*365));
   SetCookie("lastvisit", Datum.toGMTString(), expdate);
}
function EMail(Name, Domain, AnzeigeText1, AnzeigeText2)
{
   document.write("<a href='mailto:" + Name + "@" + Domain + "'>" + AnzeigeText1 + AnzeigeText2 + "</a>");
}
function s_RechtsSperren()
{
   if( event.button == 2 )
   {
      alert("Geht hier nicht !");
   }
}
function RechtsSperren()
{
   document.onmousedown = s_RechtsSperren;
}


/* Navigationsknoepfe waagrecht aktiv/inaktiv schalten */
function NavKnopfAn() {
   window.event.srcElement.className = 'NKAn';
}
function NavKnopfAus() {
   window.event.srcElement.className = 'NKAus';
}

/* Navigationsknoepfe senkrecht aktiv/inaktiv schalten */
function NavVKnopfAn() {
   window.event.srcElement.className = 'NKVAn';
}
function NavVKnopfAus() {
   window.event.srcElement.className = 'NKVAus';
}