Monthly Archives: October 2011

Prototype 1.6: Event.live

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I’ve recently been using Prototype 1.6 and had a need for a jQuery.live() clone. The following code appears to emulate mouse events well (form submits [and maybe more...] do not work in IE):

Event.live = function(s, e, f) {
    Event.observe(document, e, function(event) {
        if (Element.match(event.target, s)) {
            if (!(f.call(event.target, event))) {
                event.stop();
            }
        }
    });
}

To use this run something like the following:

Event.live('div#doesnt_exist_yet a.button', 'click', function() {
    // run this when the button is clicked
});

Hope this helps!