Question

Is it possible to define a event handler of one type of HTML object so that all the instances of this type of objects have this handler? for example, can I create a function func() as the onclick event handler of input text-fields so that all the input-fields have func() as its onclick event handler?

(it’s just something like adding a function to the prototype of a native javascript object.)

Answer 1

No.

Instead, you can handle onclick for the document, then check if e.target || e.srcElement is an <input>.

This is how jQuery’s .live() works.