Check() public method

public Check ( )
            i18n("Restricted");
            ?>
</label>
            <pre><?php 
            i18n("You can not check for updates");
            ?>
</pre>
            <button onclick="codiad.modal.unload();return false;"><?php 
            i18n("Close");
            ?>
</button>
            <?php 
        } else {
            require_once 'class.update.php';
            $update = new Update();
            $vars = json_decode($update->Check(), true);
            ?>
            <form>
            <input type="hidden" name="archive" value="<?php 
            echo $vars[0]['data']['archive'];
            ?>
">
            <input type="hidden" name="remoteversion" value="<?php 
            echo $vars[0]['data']['remoteversion'];
            ?>
">
            <label><?php 
            i18n("Update Check");
            ?>
</label>
            <br><table>