static function get_next_post_link($id)
 {
     $args = array('posts_per_page' => -1, 'offset' => 0, 'category' => '', 'category_name' => '', 'orderby' => 'date', 'order' => 'DESC', 'include' => '', 'exclude' => '', 'meta_key' => '', 'meta_value' => '', 'post_type' => 'post', 'post_mime_type' => '', 'post_parent' => '', 'author' => '', 'post_status' => 'publish', 'suppress_filters' => true);
     $posts_array = get_posts($args);
     self::$all_posts_id = array();
     foreach ($posts_array as $key => $single) {
         array_push(self::$all_posts_id, $single->ID);
     }
     $index = '';
     $link = '<ul>';
     $prev = '';
     $next = '';
     $count = count(self::$all_posts_id);
     if (!empty(self::$all_posts_id)) {
         for ($i = 0; $i < $count; $i++) {
             if (self::$all_posts_id[$i] == $id) {
                 $index = $i;
                 break;
             }
         }
         if ($index == 0) {
             $prev = '<li class="prev"><a href="' . get_permalink(self::$all_posts_id[$count - 1]) . '"><i class="icon-left-open-big"></i></a></li>';
             $next = '<li class="next"><a href="' . get_permalink(self::$all_posts_id[1]) . '"><i class="icon-right-open-big"></i></a></li>';
         } elseif ($index == $count - 1) {
             $prev = '<li class="prev"><a href="' . get_permalink(self::$all_posts_id[$count - 2]) . '"><i class="icon-left-open-big"></i></a></li>';
             $next = '<li class="next"><a href="' . get_permalink(self::$all_posts_id[0]) . '"><i class="icon-right-open-big"></i></a></li>';
         } else {
             $prev = '<li class="prev"><a href="' . get_permalink(self::$all_posts_id[$index - 1]) . '"><i class="icon-left-open-big"></i></a></li>';
             $next = '<li class="next"><a href="' . get_permalink(self::$all_posts_id[$index + 1]) . '"><i class="icon-right-open-big"></i></a></li>';
         }
     }
     $link .= $prev . '<li><a href="#"><i class="icon-layout"></i></a></li>' . $next;
     $link .= '</ul>';
     return $link;
 }