function rand ( n )
{
  return ( Math.floor ( Math.random ( ) * n + 1 ) );
}

 function angebotshow(i) {
  document.getElementById( angebotsboxen[i] ).style.display = "block";
 }

 function angebotehide() {
  for (var i = 0; i < angebotsboxen.length; ++i)
   document.getElementById( angebotsboxen[i] ).style.display = "none";
 }

 function angebotnext() {
  if( aktuellebox+1 <= boxenanzahl-1 )   aktuellebox++;
  else                                   aktuellebox = 0;
  angebotehide();
  angebotshow(aktuellebox);
 }

 function angebotprev() {
  if( aktuellebox-1 >= 0 )   aktuellebox--;
  else                       aktuellebox = boxenanzahl-1;
  angebotehide();
  angebotshow(aktuellebox);
 }











function bild_rand ( n )
{
  return ( Math.floor ( Math.random ( ) * n + 1 ) );
}

 function bild_angebotshow(i) {
  document.getElementById( bild_angebotsboxen[i] ).style.display = "block";
 }

 function bild_angebotehide() {
  for (var i = 0; i < bild_angebotsboxen.length; ++i)
   document.getElementById( bild_angebotsboxen[i] ).style.display = "none";
 }

 function bild_angebotnext() {
  if( bild_aktuellebox+1 <= bild_boxenanzahl-1 )   bild_aktuellebox++;
  else                                   bild_aktuellebox = 0;
  bild_angebotehide();
  bild_angebotshow(bild_aktuellebox);
 }

 function bild_angebotprev() {
  if( bild_aktuellebox-1 >= 0 )   bild_aktuellebox--;
  else                       bild_aktuellebox = bild_boxenanzahl-1;
  bild_angebotehide();
  bild_angebotshow(bild_aktuellebox);
 }









function FormKinder( num ) {

  document.getElementById("xkind1").style.display = 'none';
  document.getElementById("xkind2").style.display = 'none';
  document.getElementById("xkind3").style.display = 'none';
  document.getElementById("xkind4").style.display = 'none';
  document.getElementById("xkind5").style.display = 'none';
  document.getElementById("xkind6").style.display = 'none';
  
  document.getElementById("xkindlabel1").style.display = 'none';
  document.getElementById("xkindlabel2").style.display = 'none';
  document.getElementById("xkindlabel3").style.display = 'none';
  document.getElementById("xkindlabel4").style.display = 'none';
  document.getElementById("xkindlabel5").style.display = 'none';
  document.getElementById("xkindlabel6").style.display = 'none';

 if( num >= 1 ) { document.getElementById("xkind1").style.display = 'block'; document.getElementById("xkindlabel1").style.display = 'block'; }
 if( num >= 2 ) { document.getElementById("xkind2").style.display = 'block'; document.getElementById("xkindlabel2").style.display = 'block'; }
 if( num >= 3 ) { document.getElementById("xkind3").style.display = 'block'; document.getElementById("xkindlabel3").style.display = 'block'; }
 if( num >= 4 ) { document.getElementById("xkind4").style.display = 'block'; document.getElementById("xkindlabel4").style.display = 'block'; }
 if( num >= 5 ) { document.getElementById("xkind5").style.display = 'block'; document.getElementById("xkindlabel5").style.display = 'block'; }
 if( num >= 6 ) { document.getElementById("xkind6").style.display = 'block'; document.getElementById("xkindlabel6").style.display = 'block'; }

}



function AnfrageSubmit() {

 var KinderDetails = "";
 
 if( document.khformula.xkinder.value != 0 ) {
  KinderDetails += "( ";
  if( document.khformula.xkinder.value >= 1 ) KinderDetails += "1.Kind: "+document.khformula.xkind1.value+" J.";
  if( document.khformula.xkinder.value >= 2 ) KinderDetails += " | 2.Kind: "+document.khformula.xkind2.value+" J.";
  if( document.khformula.xkinder.value >= 3 ) KinderDetails += " | 3.Kind: "+document.khformula.xkind3.value+" J.";
  if( document.khformula.xkinder.value >= 4 ) KinderDetails += " | 4.Kind: "+document.khformula.xkind4.value+" J.";
  if( document.khformula.xkinder.value >= 5 ) KinderDetails += " | 5.Kind: "+document.khformula.xkind5.value+" J.";
  if( document.khformula.xkinder.value >= 6 ) KinderDetails += " | 6.Kind: "+document.khformula.xkind6.value+" J.";
  KinderDetails += " )";
 }
 
 document.getDocumentById("kinderdetails").value = KinderDetails;
 
 if( document.khformula.xeinzelzimmer.value <= 0 &&
     document.khformula.xdoppelzimmer.value <= 0 ) {
   alert("Bitte wählen Sie ein Zimmer!");
   return false;
 } 
 
 return true;
}