How to invoke a function?

I have a javascript function. I want to call this function when a div content changes .

however there is no onload() for div.

How do I invoke the function then ?

You obtain a reference to the div, and then assign a function to the onchange event of that div.

For example:

<div id="kittens">

function handleKittenChange() {
    alert('A kitten has changed - how cwute! *squee*');

var kittens = document.getElementById('kittens');
kittens.onchange = handleKittenChange;