install_start.inc.php

<?php
 
include './language/' . $language . '/welcome.php'; //This will set message to $content;
 
$error = false;
 
if ( ! $error ) {
    $wizard->assign( 'welcome', $content );
} else {
    $wizard->assign( 'message', '<div class="confirmError">'. _INSTALL_L168 .'</div>' );
    $wizard->setReload( true );
}
 
$wizard->render( 'install_start.tpl.php' );