function &createInput($inputType, $name, $value = null, $attributes = array())
 {
     $tag = rex_form::getInputTagName($inputType);
     $className = rex_form::getInputClassName($inputType);
     $attributes = array_merge(rex_form::getInputAttributes($inputType), $attributes);
     $attributes['internal::fieldClass'] = $className;
     $element =& $this->createElement($tag, $name, $value, $attributes);
     return $element;
 }