/** 
 * Attache multiple image to a node
 * 
 * @param node 
 * @param images 
 * 
 * @return bool
 */
function _node_associate_img($node,$images) {
  $files = false;
 
  if(!is_array($images)){
    return false;
  }
 
  foreach($images as $url) {
 
    //load image
    $img_content = file_get_contents($url);
 
    if(empty($img_content)) {
      watchdog('node_associate', t('@file is not a valid url', array('@file' => $url)));
      continue;
    }
 
    //get the file name
    $filename = basename($url);
 
    //Get the widget settings for the image field to know which directory to save to.
    $field_path = filefield_widget_file_path(content_fields('field_image','story'));
    //prepare the path
    $path = $field_path.'/'.$filename;
 
  if (file_exists($path)) {
      file_delete($path);
    }
    //save temp file
    $has_save = file_save_data($img_content, file_directory_temp().'/'.$filename);
 
    if(!$has_save) {
      watchdog('node_associate', t('unable to save image'));
      continue;
    }
 
    //add file to the node
    $file = field_file_save_file($has_save, array(),$path);
    $node->field_image[] = $file;
    node_save($node);
  }
 
  if(!$files){ 
     return false;
  }
 
    return true;
}