function my_edit_menu_link($location = 'top', $classes = '')
{
    $menu_obj = get_menu_by_location($location);
    if ($menu_obj) {
        my_edit_link("/wp-admin/nav-menus.php?action=edit&menu={$menu_obj->term_id}", __('Edit menu'), "my-edit-menu-link my-edit-menu-link-{$location} {$classes}");
    } else {
        my_edit_link("/wp-admin/nav-menus.php?action=edit&menu=0&use-location={$location}", __('Add menu'), "my-edit-menu-link my-edit-menu-link-{$location} {$classes}", '<i class="fa fa-plus-square"></i>');
    }
}
function mytheme_comment($comment, $args, $depth)
{
    $GLOBALS['comment'] = $comment;
    ?>
   <li>
    <article <?php 
    comment_class('media');
    ?>
 id="comment-<?php 
    comment_ID();
    ?>
">
      <a class="pull-left" href="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
">
        <?php 
    echo get_avatar($comment, $size = '64');
    ?>
      </a>
      <div class="media-body">
        <header class="comment-author vcard">
            
          <?php 
    printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link());
    ?>
          <time><?php 
    printf(__('%1$s at %2$s'), get_comment_date(), get_comment_time());
    ?>
</time> 
          <span class="sharing-tools">
            <a href="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
"><i class="icon-link"></i></a>
            <span class='st_facebook_custom' st_url="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
"><i class="icon-facebook-sign"></i></span>
            <span class='st_twitter_custom' st_url="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
"><i class="icon-twitter-sign"></i></span>
            <span class='st_linkedin_custom' st_url="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
"><i class="icon-linkedin-sign"></i></span>
            <span class='st_email_custom' st_url="<?php 
    echo htmlspecialchars(get_comment_link($comment->comment_ID));
    ?>
"><i class="icon-envelope"></i></span>   
          </span>
          <?php 
    my_edit_link(get_edit_comment_link(), __('Edit comment'));
    ?>
        </header>
        <?php 
    if ($comment->comment_approved == '0') {
        ?>
          <em><?php 
        _e('Your comment is awaiting moderation.');
        ?>
</em>
          <br />
        <?php 
    }
    ?>

        <?php 
    comment_text();
    ?>

        <nav>
          <?php 
    comment_reply_link(array_merge($args, array('depth' => $depth, 'max_depth' => $args['max_depth'], 'reply_text' => 'Reply <i class="icon-reply"></i>')));
    ?>
        </nav>
      </div>
    </article>
  <!-- </li> is added by wordpress automatically -->
<?php 
}