I wrote a plugin , but whene Active ,disable Editor and in firebug Mozila below error Is shown

element.dispatchEvent is not a function   prototype.js:5457

and line 5457 prototype.js
  if (document.createEvent)
  5457:  element.dispatchEvent(event);
  else
  element.fireEvent(event.eventType, event);

  return Event.extend(event);
  }

but plugin work very good but disable Editor. What is the cause؟

I wrote a plugin , but whene Active ,disable Editor and in firebug Mozila below error Is shown

element.dispatchEvent is not a function   prototype.js:5457

and line 5457 prototype.js
  if (document.createEvent)
  5457:  element.dispatchEvent(event);
  else
  element.fireEvent(event.eventType, event);

  return Event.extend(event);
  }

but plugin work very good but disable Editor. What is the cause؟

• javascript
• element
• attachevent

Share Improve this question Follow edited Feb 5, 2012 at 19:13 Highland Mark 1,01011 gold badge77 silver badges1212 bronze badges asked Feb 5, 2012 at 17:20 MostafaMostafa 3911 gold badge22 silver badges55 bronze badges 1

• 7 Your title says attachEvent is not a function; your text says dispatchEvent is not a function. Which is the real error? – T.J. Crowder Commented Feb 5, 2012 at 17:22

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1 Answer 1

Sorted by: Reset to default 2

Its cause the variable element has no function dispatchEvent. So you should check that element in this case is the one you expect, I doubt it. Probably you pass null/undefined or any other object but not a DOM element to this function.