I'm guessing you're not in control of the HTML generation (e.g.,
you're getting it from some other thing -- a content management
solution, another site, whatever -- and don't have direct control over
it).  If you *are* in control of the HTML generation, just don't
output the onclick attribute in the first place.

This came up a while back in the forums:  Wanting to supersede a DOM0
event handler (e.g., a handler assigned via onclick rather than more
modern ways like those used by Element#observe).  Here's a function
that looks for a button called btnGo and replaces its DOM0 handler
with a new handler, and even chains to the DOM0 handler afterward:


The HTML page this would go on would have this button somewhere:

<input type='button' id='btnGo' value='Go' onclick='alert("\"Go\" got

Obviously that's not generalized, but it should get you pointed the
right way...
T.J. Crowder
tj / crowder software / com
Independent Software Engineer, consulting services available

On Jul 10, 11:18 am, Stonk <eric.rei...@gmail.com> wrote:
> Hello,
> I have two buttons <button onclick="foo()" class="save"
> id="random_number"> and want to add an observer and fire an own
> function (bar()). When this function is completed, foo() shall get
> called.
> I tried it with the event.stop, but that just doesn't work.
> var requestDone = false;
> function bar() {
>   // ....
>   requestDone = true;}
> // Wait till page is fully loaded
> Event.observe(window, 'load', function() {
>         saveButtons = $$('button.save');
>         // Observe the Save buttons and fire the getCategories() function on
> click
>         saveButtons.invoke('observe', 'click', function(event) {
>                   if (false == requestDone) {
>                             Event.stop(event);
>                           }
>                         });
>         saveButtons.invoke('observe', 'click', bar());
> });
> Could anyone please point me in the right direction?
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