Vanilla Javascript helper function for CSS

helper_vanilla.js

/**
* CSS Secrets: Better Solutions to Everyday Web Design Problems.  Lea Verou
*/

function $$(selector, context) {
	context = context || document;
	var elements = context.querySelectorAll(selector);
	return Array.prototype.slice.call(elements);
}

$$( '.pie' ).forEach( function(item, key){ /* etc */ });