jQuery(function() {

  var group = [];
  jQuery('*[class^="s_door"]').each(function() {
    var target = jQuery(this);
    var class_name = target.attr('class');
    var next_name = target.next().attr('class');
    group.push(this);
    if ( class_name != next_name ) {
      var wrap_html = '<div class="dom-' + class_name + ' dom-inner"></div>';
      jQuery(group).wrapAll(wrap_html);
      group = [];
    }
  });

  jQuery('div[class^="dom-s_door"]').each(function() {
    var target = jQuery(this);
    var class_name = target.attr('class');
    var next_name = target.next().attr('class');
    group.push(this);
    if ( class_name != next_name ) {
      var before_add_html = '<b class="top"><b class="tl"></b><b class="tr"></b></b>';
      var after_add_html = '<b class="bottom"><b class="bl"></b><b class="br"></b></b>';
      jQuery(group).prepend(before_add_html).append(after_add_html);
      group = [];
    }
  });
});