function chk_frage(wert){
  var fragefeld = document.getElementById('fragefeld');
  var fragetab  = document.getElementById('fragetab');
  if(wert == 'Buchung'){
    zu_klappen();
  }
  else {
    fragetab.style.display = 'table';
    fragetab.style.padding = '0.2em';
    auf_klappen();
  }
}

function zu_klappen(){
  var fragefeld = document.getElementById('fragefeld');
  var fragetab  = document.getElementById('fragetab');
  var y = fragefeld.clientHeight;
  if(10 < y){
    fragefeld.style.height = y-5;
    setTimeout('zu_klappen()',30);
  }
  else {
    fragetab.style.display = 'none' ;
  }
}

function auf_klappen(){
  var fragefeld = document.getElementById('fragefeld');
  var y = fragefeld.clientHeight;
  if(y < 80){
    fragefeld.style.height = y+5;
    setTimeout('auf_klappen()',20);
  }
  else {
    fragefeld.style.height = 80;
    fragefeld.focus();
  }
}

function bildansicht(url) {
  BildFenster = window.open(url, "Zoom", "width=800,height=700,left=50,top=50");
  BildFenster.focus();
}

function js_check_kids(){
  k = document.f7.ki.value;
  rahmen = document.getElementById('kidall');
  kimax = document.f7.kimax.value;
  oldclass = rahmen.className;
  if(0 < k){
    rahmen.className = 'ckidall';
  }
  else{
    rahmen.className = 'verborgen';
  }
  for (var i = 1; i <= kimax; i++) {
    elem = document.getElementById('kid'+i);
    if(i <= k){
      elem.className = 'ckid';
      rahmen.style.height = (i*25)+35;
      elem.style.top = i*25;
    }
    else{
      elem.value     = '';
      elem.className = 'verborgen';
    }
  }
  if((oldclass == 'ckidall') & (k == 0)){
    document.f7.action = 'index.php#f';
    document.f7.ca.value = 'f';
    document.f7.cl.value = 'kpf';
    document.f7.submit();
  }
  if(kid_old != k){
    js_check_submit();
  }
}

function js_check_submit(){ // bei onchange 'Alter des Kindes'
  k = document.f7.ki.value;
  for(var i = 1; i <= k; i++) {
    elem = document.getElementById('kid'+i);
    n = elem.value;
    if(n == ''){
      return;
    }
  }
  document.f7.action = 'index.php#f';
  document.f7.ca.value = 'f';
  document.f7.cl.value = 'kpf';
  document.f7.submit();
}

function js_write_options(von,bis,select,zusatz,vorw){
  for (var i = von; i <= bis; i++) {
    i=i<10?vorw+i:i;
    if(i != select){
      document.write('<option value="'+i+'" >'+i+zusatz+'</option>');
    }
    else {
      document.write('<option value="'+i+'" selected="selected" >'+i+zusatz+'</option>');
    }
  }
}

function sk(str){
  var arr = str.split('-');
  var jahr  = arr[0];
  var monat = arr[1];
  var tag   = arr[2];
  el = document.getElementById('day');
  el.value = tag;
  el = document.getElementById('mon');
  el.value = monat;
  el = document.getElementById('year');
  el.value = '20'+jahr;
  document.f7.action = 'index.php#k';
  document.f7.ca.value = 'k';
  document.f7.cl.value = 'kpf';
  document.f7.submit();
}

function js_kalander_shift(n){
  document.f7.start.value = n;
  document.f7.action = 'index.php#k';
  document.f7.ca.value = 'k';
  document.f7.cl.value = 'kpf';
  document.f7.submit();
}


function change(){
  document.f7.action = 'index.php#f';
  document.f7.ca.value = 'f';
  document.f7.cl.value = 'kpf';
  document.f7.submit();
}

function buchen(taste){
  document.f7.action = 'https://www.fewo-line.de/webclient/index.php';
  document.f7.ca.value = '';
  document.f7.cl.value = 'kpf1';
  document.f7.btn.value = taste;
  document.f7.submit();
}