gistfile1.php

<?php
function example_form_element_label($variables) {
  $element = $variables['element'];
  // This is also used in the installer, pre-database setup.
  $t = get_t();

  // If title and required marker are both empty, output no label.
  if ((!isset($element['#title']) || $element['#title'] === '') && empty($element['#required'])) {
    return '';
  }

  // If the element is required, a required marker is appended to the label.
  $required = !empty($element['#required']) ? theme('form_required_marker', array('element' => $element)) : '';

  $title = filter_xss_admin($element['#title']);

  $attributes = array();
  // Style the label as class option to display inline with the element.
  if ($element['#title_display'] == 'after') {
    $attributes['class'] = 'option';
  }
  // Show label only to screen readers to avoid disruption in visual flows.
  elseif ($element['#title_display'] == 'invisible') {
    $attributes['class'] = 'element-invisible';
  }

  if (!empty($element['#id'])) {
    $attributes['for'] = $element['#id'];
  }

  // Bootstrap wants us to add a class to the label as well.
  if ($element['#type'] == 'checkbox') {
    $attributes['class'] = 'checkbox';
  }

  // The leading whitespace helps visually separate fields from inline labels.
  if (!empty($variables['rendered_element'])) {
    return ' <label' . drupal_attributes($attributes) . '>' . $variables['rendered_element'] . $t('!title !required', array('!title' => $title, '!required' => $required)) . "</label>\n";
  }
  else {
    return ' <label' . drupal_attributes($attributes) . '>' . $t('!title !required', array('!title' => $title, '!required' => $required)) . "</label>\n";
  }
}

function example_checkbox($variables) {
  $element = $variables['element'];
  $t = get_t();
  $element['#attributes']['type'] = 'checkbox';
  element_set_attributes($element, array('id', 'name','#return_value' => 'value'));

  // Unchecked checkbox has #value of integer 0.
  if (!empty($element['#checked'])) {
    $element['#attributes']['checked'] = 'checked';
  }
  _form_set_class($element, array('form-checkbox', 'checkbox'));

  return '<input' . drupal_attributes($element['#attributes']) . ' />';
}

function example_form_element($variables) {
  $element = &$variables['element'];
  // This is also used in the installer, pre-database setup.
  $t = get_t();

  // This function is invoked as theme wrapper, but the rendered form element
  // may not necessarily have been processed by form_builder().
  $element += array(
    '#title_display' => 'before',
  );

  // Add element #id for #type 'item'.
  if (isset($element['#markup']) && !empty($element['#id'])) {
    $attributes['id'] = $element['#id'];
  }
  // Add element's #type and #name as class to aid with JS/CSS selectors.
  $attributes['class'] = array('form-item');
  if (!empty($element['#type'])) {
    $attributes['class'][] = 'form-type-' . strtr($element['#type'], '_', '-');
  }
  if (!empty($element['#name'])) {
    $attributes['class'][] = 'form-item-' . strtr($element['#name'], array(' ' => '-', '_' => '-', '[' => '-', ']' => ''));
  }
  // Add a class for disabled elements to facilitate cross-browser styling.
  if (!empty($element['#attributes']['disabled'])) {
    $attributes['class'][] = 'form-disabled';
  }
  $output = '<div' . drupal_attributes($attributes) . '>' . "\n";

  // If #title is not set, we don't display any label or required marker.
  if (!isset($element['#title'])) {
    $element['#title_display'] = 'none';
  }
  $prefix = isset($element['#field_prefix']) ? '<span class="field-prefix">' . $element['#field_prefix'] . '</span> ' : '';
  $suffix = isset($element['#field_suffix']) ? ' <span class="field-suffix">' . $element['#field_suffix'] . '</span>' : '';

  if ($element['#type'] == 'checkbox') {                                      
    $variables['rendered_element'] = ' ' . $prefix . $element['#children'] . $suffix . "\n";
    $output .= theme('form_element_label', $variables);             
  }                                                                           
  else {
    switch ($element['#title_display']) {
      case 'before':
      case 'invisible':
        $output .= ' ' . theme('form_element_label', $variables);
        $output .= ' ' . $prefix . $element['#children'] . $suffix . "\n";
        break;

      case 'after':
        $output .= ' ' . $prefix . $element['#children'] . $suffix;
        $output .= ' ' . theme('form_element_label', $variables) . "\n";
        break;

      case 'none':
      case 'attribute':
        // Output no label and no required marker, only the children.
        $output .= ' ' . $prefix . $element['#children'] . $suffix . "\n";
        break;
    }
  }

  if (!empty($element['#description'])) {
    $output .= '<div class="description">' . $element['#description'] . "</div>\n";
  }

  $output .= "</div>\n";

  return $output;
}