code: function(type, handler) {
  			var sig = this.spirit.$contextid;
  			if (this._global) {
  				gui.Tick.removeGlobal(type, handler);
  			} else {
  				gui.Tick.remove(type, handler, sig);
  			}
  		}
docs: Remove handler.
  @param {String} type
  @param {object|function} handler