handler is undefined prototype.js handler.call(element, event) create wrapper

[jaikumar]

Hi ,

I am getting " handler is undefined" error in prototype.js Fire
Bug pointing to this method in prototype.js handler.call(element,
event) create wrapper.

Can any one help me to solve this bug.

[ColinFine]

Probably not, without more information.
If you asked me to guess, I would guess that you are passing a non-
existent function to 'observe'.
If you asked me to guess further, I would guess that you might be
writing a function call instead of a function,
so:

myelement.observe('click', myFunction);

sets 'myFunction' as the click handler for myelement, but

myelement.observe('click', myFunction()); //!!Almost always wrong!!

calls myFunction and sets the result (which is almost certainly not a
function) as the handler.

But I may be in completely the wrong area, since you haven't told us
anything about what you are doing.