php - highlight active page option value in select element using "option selected value" -

i'm using custom wp-query on website display pages parent page inside list style select, when selecting page i'm redirected right page.

works fine :

here code :

<?php              $args = array(             'post_type'      => 'page',             'posts_per_page' => -1,             'post_parent'    => '22',             'order'          => 'asc',             'orderby'=>'meta_value',             'meta_key'=>'nom_de_loeuvre'             );              $parent = new wp_query( $args );              if ( $parent->have_posts() ) : ?>              <span class="styled-select">                  <select name="" onchange="location = this.options[this.selectedindex].value;">                  <option>a - z</option>                    <?php while ( $parent->have_posts() ) : $parent->the_post(); ?>                           <option value="<?php the_permalink(); ?>" title="<?php the_title(); ?>">                         <?php the_field('nom_de_loeuvre'); ?>                         , de                          <?php if(get_field('prenom_artiste')): ?>                         <?php the_field('prenom_artiste'); ?>                         <?php endif ;?>                         <?php the_field('nom_artiste'); ?> | galerie                          <?php if(get_field('prenom_galerie')): ?>                         <?php the_field('prenom_galerie'); ?>                         <?php endif ;?>                         <?php the_field('nom_galerie'); ?>                          </option>                    <?php endwhile; ?>                   </select>              </span>              <?php endif; wp_reset_query(); ?> 

no i'm trying hightlight active page of list, using "option selected value". when on page, want select list display current page in liste. can me ?

i can't find solution or way on web... i'm not sure if it's possible, guess if is, must add in wp-query or maybe in jquery ?

thanks lot help...