$user_cur->comm[$user_cur->step % COMM_N] = "gst.st = ".($user_cur->step+1)."; ";
$user_cur->comm[$user_cur->step % COMM_N] .= sprintf('chatt_sub("%s","%s");',
$user_cur->comm[$user_cur->step % COMM_N] = "gst.st = ".($user_cur->step+1)."; ";
$user_cur->comm[$user_cur->step % COMM_N] .= sprintf('chatt_sub("%s","%s");',