function WKPlus(aInputFieldId, id, menge) { 
  var inputField = window.document.getElementById(aInputFieldId); 
  if(parseInt(inputField.value) < 99) {
    inputField.value = parseInt(inputField.value) + 1; 
  }
  if(menge < 99) {menge = inputField.value;}
  new Ajax.Updater('ArtikelAnzahl','inctemp/wkfunktionen.php?aktion=Change&id='+id+'&Parameter='+menge, 
  {
    method: 'get',
    onComplete: function (obj){
      $('Stat'+id).innerHTML = '[1x&nbsp;hinzugef&uuml;gt]';
      new Effect.Appear('Stat'+id, {duration: 0.5, from: 0.2, to: 1, afterFinish: function (obj) 
      {
        new Effect.Fade('Stat'+id, {duration: 0.8, from: 1, to: 0, afterFinish: function (obj) 
        {
          $('Stat'+id).innerHTML = '';
        }});
      }});
    }
  });
  
  return false; 
}  
function WKMinus(aInputFieldId, id, menge) { 
  var inputField = window.document.getElementById(aInputFieldId); 
  if(parseInt(inputField.value) > 0) {
    inputField.value = parseInt(inputField.value) - 1; 
  }
  if(menge > 0) {menge = inputField.value;}
  new Ajax.Updater('ArtikelAnzahl','inctemp/wkfunktionen.php?aktion=Change&id='+id+'&Parameter='+menge, 
  {
    method: 'get',
    onComplete: function (obj){
      $('Stat'+id).innerHTML = '[1x&nbsp;entfernt]';
      new Effect.Appear('Stat'+id, {duration: 0.5, from: 0.2, to: 1, afterFinish: function (obj) 
      {
        new Effect.Fade('Stat'+id, {duration: 0.8, from: 1, to: 0, afterFinish: function (obj) 
        {
          $('Stat'+id).innerHTML = '';
        }});
      }});
    }
  });
  
  return false;
}