var kursname    = null;
   var kursdatum   = null;
   var initialized = 0;
   var butpressed  = 'this.frames[0].document.se2_home';

   function anmform(kurs, datum)	/* Anmeldeformular fuer gewaehten Kurs anzeigen */
    {
     kursname  = kurs;
     kursdatum = datum;
     this.frames[1].location.href="anm_form.htm";
    } /* end of function anmform() */


   /* Anzeige von navbar als Navigationsleiste            */
   /* Aktivierung von buttonname in der Navigationsleiste */
   function navigate(navbar, buttonname)
    {
     /* Navigationsleiste austauschen (wenn noetig) */
     if (this.frames[0].location.href != navbar)
       this.frames[0].location.href = navbar;

     /* Button aktiv anzeigen */
     butpressed = buttonname;
    }


   /* Preload fuer Navigationsleiste 1 bzw. 2 durchfuehren */
   function initnavi(navi_number)
    {
     if (initialized < navi_number)
     {
      initialized = navi_number;

      if (navi_number == 1)
      {
        preload('this.frames[0].document.se2_home', '', 'images/seh_home.jpg',
		'this.frames[0].document.se2_tpt',  '', 'images/seh_tpt.jpg',
		'this.frames[0].document.se2_gkat', '', 'images/seh_gkat.jpg',
		'this.frames[0].document.se2_skal', '', 'images/seh_skal.jpg',
		'this.frames[0].document.se2_fsem', '', 'images/seh_fsem.jpg',
		'this.frames[0].document.se2_sanm', '', 'images/seh_sanm.jpg',
		'this.frames[0].document.se2_sort', '', 'images/seh_sort.jpg',
		'this.frames[0].document.se2_agbs', '', 'images/seh_agbs.jpg');
      }
      else
      {
	preload(
	    'this.frames[0].document.se2_ibm' , '', 'images/seh_neu_ibm.gif',
		'this.frames[0].document.se2_ora' , '', 'images/seh_neu_ora.gif',
		'this.frames[0].document.se2_e' , '', 'images/seh_neu_e.gif',
		'this.frames[0].document.se2_gk' , '', 'images/seh_neu_gk.gif',
		'this.frames[0].document.se2_s' , '', 'images/seh_neu_s.gif',
		'this.frames[0].document.se2_mss' , '', 'images/seh_neu_mss.gif');
      }
     }
     if (navi_number == 1)
	showimg(butpressed, 2);
     else
     {
	resetimg();
	showimg('this.frames[0].document.se2_tpt', 2);
     }
    }