docs: function(newnode, oldnode, ids) {
  		var result = true;
  		var update = null;
  		if (this._attschanged(newnode.attributes, oldnode.attributes, ids)) {
  			var newid = this._assistant.id(newnode);
  			var oldid = this._assistant.id(oldnode);
  			if (newid && newid === oldid) {
  				update = new edbml.AttsUpdate(this._doc).setup(oldid, newnode, oldnode);
  				this._updates.collect(update, ids);
  			} else {
  				result = false;
  			}
  		}
  		return result;
  	}