Programmer's Guide > Interfaces > W3C EventListener interface
  
W3C EventListener interface
The EventListener interface is defined in the W3C Document Object Model (DOM) Level 2 Events Specification. (Refer to http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113.)
The EventListener interface is the primary method for handling events. Users implement the EventListener interface and register their listener on an EventTarget using the AddEventListener method. The users should also remove their EventListener from its EventTarget after they have completed using the listener.
When a Node is copied using the cloneNode method the EventListener s attached to the source Node are not attached to the copied Node. If the user wishes the same EventListeners to be added to the newly created copy the user must add them manually.