menu_item_link d7-en

function tuti_theme_menu_item_link($link) {
  // Allows for images as menu items. Just supply the path to the image as the title
  if (strpos($link['title'], '.png') !== false || strpos($link['title'], '.jpg') !== false || strpos($link['title'], '.gif') !== false) {
    $link['title'] = '<img alt="'. $link['description'] .'" title="'. $link['description'] .'" src="'. url($link['title']) .'" />';
    $link['localized_options']['html'] = TRUE;
  }
  return zen_menu_item_link($link); // Let Zen take over from here.
}