On Sep 14, 2007, at 1:08 AM, Roland wrote:
>
> Hi there,
>
> Events can be attached multiple times to the same element.. is there a
> way to prevent this?
>
> Something like ...
>
> if(!$(el).hasEventAttached()) Event.observe($(el), 'click',
> function());
If this is what you *really* need (and I'd suggest you may have a
design problem if you think so), then don't use Event.observe--
instead, attach the handler directly:
// Not tested
var f = function (e) { ... }.bindAsEventListener(someObject);
if (el.onclick != f) {el.onclick = f;}
TAG
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