commentData.js

commentData allows you to specify JSON metadata for your HTML elements. Data can be retrieved through the commentData function. Example usage:

<div id="something">
    <!--{ someData: 123, other: 'foo' }-->
    <p>... Other content...</p>
</div>

var something = document.getElementById('something');
var data = commentData( something ); // <= { someData: 123, other: 'foo' }
data.someData; // <= 123

JSON data specified in any comment is tied to the parent element (relative to the comment).

Note: commentData CANNOT be used with self-closing HTML elements, such as <img/>