code: function _generate_element(ctype, str){
  
  	var message_classes = ['bbop-js-message',
  			       'bbop-js-message-' + ctype];
  
  	var message_elt =
  	    new bbop.html.tag('div',
  			      {'generate_id': true,
  			       'class': message_classes.join(' ')},
  			      '<h2>' + str + '</h2>');
  
      	jQuery("body").append(jQuery(message_elt.to_string()).hide());
  
  	// jQuery-ify the element.
      	var elt = jQuery('#' + message_elt.get_id());
      	return elt;
      }
docs: Generate tags.