The website I’m currently working on is written into two languages (fr/en). The method I’m using to translate the page is quite simple :

HTML

<ul id="switch">
    <li><a href="index.php?lang=en" title="English version">En</a></li>
    <li><a href="index.php?lang=fr" title="Version française">Fr</a></li>
</ul>

PHP (index.php)

<?php      
    // Translation
    if(isset($_GET['lang'])) {
        $lang = $_GET['lang'];
    }
    else {
        $lang = 'en';
    }

    switch($lang) {
        case 'en':
            $content = 'en.php';
            break;

        case 'fr':
            $content = 'fr.php';
            break;
    }

    include_once('lang/'.$content);
?>

Both en.php and fr.php contain an array filled with the actual content of the page in their respective language.

en.php (example)

<?php
    $version = array(
        'mainTitle' => 'Main title test',
        'noscript' => 'Noscript message test',
        'header' => 'Header test'
        // And so on, same thing for the french version
    );
?>

This system works fine and is sufficient for this website, but it implies a page refresh when the user switches from one language to another and that is precisely what I would like to avoid.

I guess I could work this out using a bit of AJAX (jQuery) but I am not exactly sure how to do this. Could you give me a few hint on how to implement this? I’m also open to suggestions on other possible ways of doing this – bearing in mind that it is a small scale project.

Thanks for your help.