* Name:     html_select_time
 * Purpose:  Prints the dropdowns for time selection
 *
 * @link     http://www.smarty.net/manual/en/language.function.html.select.time.php {html_select_time}
 *           (Smarty online manual)
 * @author   Roberto Berto 
 * @author   Monte Ohrt 
 *
 * @param array $params parameters
 *
 * @return string
 * @uses     smarty_make_timestamp()
 */
function smarty_function_html_select_time($params)
{
    $prefix = "Time_";
    $field_array = null;
    $field_separator = "\n";
    $option_separator = "\n";
    $time = null;
    $display_hours = true;
    $display_minutes = true;
    $display_seconds = true;
    $display_meridian = true;
    $hour_format = '%02d';
    $hour_value_format = '%02d';
    $minute_format = '%02d';
    $minute_value_format = '%02d';
    $second_format = '%02d';
    $second_value_format = '%02d';
    $hour_size = null;
    $minute_size = null;
    $second_size = null;
    $meridian_size = null;
    $all_empty = null;
    $hour_empty = null;
    $minute_empty = null;
    $second_empty = null;
    $meridian_empty = null;
    $all_id = null;
    $hour_id = null;
    $minute_id = null;
    $second_id = null;
    $meridian_id = null;
    $use_24_hours = true;
    $minute_interval = 1;
    $second_interval = 1;
    $extra_attrs = '';
    $all_extra = null;
    $hour_extra = null;
    $minute_extra = null;
    $second_extra = null;
    $meridian_extra = null;
    foreach ($params as $_key => $_value) {
        switch ($_key) {
            case 'time':
                if (!is_array($_value) && $_value !== null) {
                    $time = smarty_make_timestamp($_value);
                }
                break;
            case 'prefix':
            case 'field_array':
            case 'field_separator':
            case 'option_separator':
            case 'all_extra':
            case 'hour_extra':
            case 'minute_extra':
            case 'second_extra':
            case 'meridian_extra':
            case 'all_empty':
            case 'hour_empty':
            case 'minute_empty':
            case 'second_empty':
            case 'meridian_empty':
            case 'all_id':
            case 'hour_id':
            case 'minute_id':
            case 'second_id':
            case 'meridian_id':
            case 'hour_format':
            case 'hour_value_format':
            case 'minute_format':
            case 'minute_value_format':
            case 'second_format':
            case 'second_value_format':
                $$_key = (string) $_value;
                break;
            case 'display_hours':
            case 'display_minutes':
            case 'display_seconds':
            case 'display_meridian':
            case 'use_24_hours':
                $$_key = (bool) $_value;
                break;
            case 'minute_interval':
            case 'second_interval':
            case 'hour_size':
            case 'minute_size':
            case 'second_size':
            case 'meridian_size':
                $$_key = (int) $_value;
                break;
            default:
                if (!is_array($_value)) {
                    $extra_attrs .= ' ' . $_key . '="' . smarty_function_escape_special_chars($_value) . '"';
                } else {
                    trigger_error("html_select_date: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
                }
                break;
        }
    }
    if (isset($params['time']) && is_array($params['time'])) {
        if (isset($params['time'][$prefix . 'Hour'])) {
            // $_REQUEST[$field_array] given
            foreach (array('H' => 'Hour', 'i' => 'Minute', 's' => 'Second') as $_elementKey => $_elementName) {
                $_variableName = '_' . strtolower($_elementName);
                $$_variableName = isset($params['time'][$prefix . $_elementName])
                    ? $params['time'][$prefix . $_elementName]
                    : date($_elementKey);
            }
            $_meridian = isset($params['time'][$prefix . 'Meridian'])
                ? (' ' . $params['time'][$prefix . 'Meridian'])
                : '';
            $time = strtotime($_hour . ':' . $_minute . ':' . $_second . $_meridian);
            list($_hour, $_minute, $_second) = $time = explode('-', date('H-i-s', $time));
        } elseif (isset($params['time'][$field_array][$prefix . 'Hour'])) {
            // $_REQUEST given
            foreach (array('H' => 'Hour', 'i' => 'Minute', 's' => 'Second') as $_elementKey => $_elementName) {
                $_variableName = '_' . strtolower($_elementName);
                $$_variableName = isset($params['time'][$field_array][$prefix . $_elementName])
                    ? $params['time'][$field_array][$prefix . $_elementName]
                    : date($_elementKey);
            }
            $_meridian = isset($params['time'][$field_array][$prefix . 'Meridian'])
                ? (' ' . $params['time'][$field_array][$prefix . 'Meridian'])
                : '';
            $time = strtotime($_hour . ':' . $_minute . ':' . $_second . $_meridian);
            list($_hour, $_minute, $_second) = $time = explode('-', date('H-i-s', $time));
        } else {
            // no date found, use NOW
            list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d'));
        }
    } elseif ($time === null) {
        if (array_key_exists('time', $params)) {
            $_hour = $_minute = $_second = $time = null;
        } else {
            list($_hour, $_minute, $_second) = $time = explode('-', date('H-i-s'));
        }
    } else {
        list($_hour, $_minute, $_second) = $time = explode('-', date('H-i-s', $time));
    }
    // generate hour