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<?php //List posts by taxonomy tag

    $terms = get_terms('language'); 

        if (count($terms)) {

        echo "<h3>Quick links</h3>";

        }

    $i=0; // counter for printing separator bars

        foreach ($terms as $term) {

            $wpq = array ('taxonomy'=>'language','term'=>$term->slug);

            $query = new WP_Query ($wpq);

            $article_count = $query->post_count;

            echo "<a href="#".$term->slug."">".$term->name."</a>";

            // output separator bar if not last item in list

            if ( $i < count($terms)-1 ) {

            echo " | " ;

            }

        $i++;

        }

    foreach ($terms as $term) {

        $wpq = array ('taxonomy'=>'language','term'=>$term->slug, 'orderby'=>'title', 'order'=>'ASC');

        $query = new WP_Query ($wpq);

        $article_count = $query->post_count; ?>

        <h2 id="<?php $term->slug ?>"><?php echo $term->name; ?></h2>

        <?php if ($article_count) { ?>

        <ul>

        <?php $posts = $query->posts;

        foreach ($posts as $post) {

        echo "<li><a href="".get_permalink()."">".$post->post_title."</a></li>";

        } ?>

        </ul>

        <?php }} ?>