addEvent()

[jigneshjsoni]

addEvent(document.getElementById('myinput'), 'blur', function(event) {
    alert('The element lost focus (blurred)');
});

Is addEvent() a built-in functionality in JavaScript ? If not, then how will JavaScript understand it when used for an event handler ?

Thanks

[JMRKER]

It is not a built-in function.
There are some examples by searching this forum
or see: http://www.dustindiaz.com/rock-solid-addevent/
or: http://robertnyman.com/2006/08/30/ev...vent-solution/
or: http://en.design-noir.de/webdev/JS/addEvent/
or other sites.