Final Code

<?php
    $images = intval($wpdb->get_var("SELECT COUNT(*) FROM $wpdb->nggpictures"));
    $ngg_options = nggGallery::get_option("ngg_options");
    $maxElement = $ngg_options["galImages"];
    if ($images > $maxElement) {
        echo "<div class='ngg-navigation-end'><!-- --></div>";
    }
?>