function zoomPicture(THVAL) {
    var detailPicture = THVAL.replace(/-th_/g, "");
    
    document.getElementById("detailansicht").src = detailPicture;
  }
  
  function checkEmail(s)
  {
    var a = false;
    var res = false;
    
    if(typeof(RegExp) == 'function')
    {
      var b = new RegExp('abc');
      
      if(b.test('abc') == true)
      {
        a = true;
      }
    }
    
    if(a == true)
    {
      reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+
                       '(\\@)([a-zA-Z0-9\\-\\.]+)'+
                       '(\\.)([a-zA-Z]{2,4})$');
      res = (reg.test(s));
    }
    else
    {
      res = (s.search('@') >= 1 && s.lastIndexOf('.') > s.search('@') && s.lastIndexOf('.') >= s.length-5)
    }
    
    return res;
  }
  
  
  
  function checkFields()
  {
    checkVar = true;
    
    if (document.oohContact.conName.value == '')
    {
      checkVar = false;
      document.oohContact.conName.style.backgroundColor = '#FCF4F4';
    }
    else
    {
      document.oohContact.conName.style.backgroundColor = '#FFFFFF';
    }
    
    if (document.oohContact.conEmail.value == '')
    {
      checkVar = false;
      document.oohContact.conEmail.style.backgroundColor = '#FCF4F4';
    }
    else if (checkEmail(document.oohContact.conEmail.value) != true)
    {
      checkVar = false;
      document.oohContact.conEmail.style.backgroundColor = '#FCF4F4';
    }
    else
    {
      document.oohContact.conEmail.style.backgroundColor = '#FFFFFF';
    }
    
    if (document.oohContact.conSubject.value == '')
    {
      checkVar = false;
      document.oohContact.conSubject.style.backgroundColor = '#FCF4F4';
    }
    else
    {
      document.oohContact.conSubject.style.backgroundColor = '#FFFFFF';
    }
    
    if (checkVar == false)
    {
      alert('Sie haben nicht alle Felder korrekt ausgefA1llt!');
      
      return false;
    }
    else
    {
      return true;
    }
  }