code: function(event_name, target) {
  
  		if (!(event_name in this._events)) {
  
  			this._events[event_name] = [target];
  
  		} else {
  
  			this._events[event_name].push(target);
  
  		}
  
  	}
docs: Add a route for DOM event - normal version
  @param {string} event_name
  @param {_cTarget} target