function checkinput() {
	mf=document.forms.suchauswahl;
	kats=mf.suchkat;
	c="";
	for (i=0; i<kats.length; i++) {
			if (kats[i].checked == true) {
				kat=kats[i].value;
			}
	}
	myaction="";
	limiter="";
	if(mf.limiter.value!="no") {
		limiter=";"+mf.limiter.value;
	}
	// **Kategorien**
	// Ausbildung 		1570753
	// Weiterbildung	1570764
	// Seminare 		1570775
	switch(kat) {
		case "1":
			myaction="";
			c="1564869-"+limiter;
			mf.qu.value=unescape(mf.que.value+"*");
			mf.c.value=c;
			mf.typ.value="";
		break;
		case "2":
		// Ausbildungen
			c="1570753-"+limiter;
			mf.c.value=c;
			mf.qu.value=unescape(mf.que.value+"*");
			myaction="";
		break;
		case "3":
		// Weiterbildungen
			c="1570764-"+limiter;
			mf.c.value=c;
			mf.qu.value=unescape(mf.que.value+"*");
			myaction="";
		break;
		case "4":
		// Seminare
			c="1570775-"+limiter;
			mf.c.value=c;
			mf.qu.value=unescape(mf.que.value+"*");
			myaction="";
		break;
	}
	mf.action=myaction;
	mf.submit();
}
function toggle_extended(imgname, extname, force) {
      el = document.getElementById(extname);
      img = document.getElementById(imgname);
      is_khtml = navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled );
      is_opera = navigator.userAgent.indexOf("Opera") > -1;
      if(el) {
        if(el.style.visibility == 'hidden')
          action = 'show';
        else
          action = 'hide';
        // Überschrieben?
        if(force && force.length > 0) {
          if(force == 'open')
            action = 'show';
          else if(force == 'hide')
            action = 'hide';
        }

        if(action == 'show') {
          img.value='Suchoptionen ausblenden';
          el.style.visibility = 'visible';
          if(document.all && !is_khtml && !is_opera)
            el.style.display = 'block';
          else
            el.style.display = 'table-row';
        } else {
          img.value='Suchoptionen einblenden';
          el.style.visibility = 'hidden';
          el.style.display = 'none';
        }
      } else
        alert("Element " + extname + " not found!");
    }