public static function add($keys, $func, $opts = array())
{
if (isset($_REQUEST['__location']) && self::$clean !== $_REQUEST['__location'] || self::$clean === false) {
self::$clean = isset($_REQUEST['__location']) ? $_REQUEST['__location'] : true;
eval_js('shortcut.remove_all();');
}
$js = 'shortcut.add("' . implode('+', $keys) . '",' . $func . ',{';
$js .= '\'type\':\'' . (isset($opts['type']) ? $opts['type'] : 'keydown') . '\',';
$js .= '\'propagate\':' . (isset($opts['propagate']) ? $opts['propagate'] : 'false') . ',';
$js .= '\'disable_in_input\':' . (isset($opts['disable_in_input']) ? $opts['disable_in_input'] : 'false') . ',';
$js .= '\'target\':' . (isset($opts['target']) ? $opts['target'] : 'document');
$js .= '});';
eval_js($js);
}
