GET.js

/*! 
 * GET URL Parsing 
 * September 24, 2009 
 * Corey Hart @ http://www.codenothing.com 
 */ 
;(function(window){ 
var 
	// Storage of param keys to values 
	$_GET = window.$_GET = {}, 
	// Storage of vanity slices 
	$_VAN = window.$_VAN = {}, 
	// Faster Referencing 
	location = window.location, 
	// Query String of the URL 
	search = location.search, 
	// Href for Vanity URL's 
	href = location.href, 
 
	/* Parsing */ 
	// Remove the '?' 
	index = search.indexOf('?') != -1 ? search.indexOf('?') + 1 : 0, 
	// Separate by ampersand 
	get = search.substr(index).split('&'), 
	// For vanity URL's, remove the host and store in array form split on the href's slash 
	vanity = href.replace(/^https?:\/\/(.*?)\//i, '').replace(/\?.*$/i, '').split('/'); 
 
	// Loop through each key/value pair 
	for (var i in get){ 
		var split = get[i].split('='); 
		// Store non-value as a null instead of undefined to 
		// differentiate between key existing and value existing 
		$_GET[split[0]] = split[1]||null; 
	} 
 
	// Loop through hashed url for splitting 
	for (var i in vanity) 
		// Again, store non-value as a null instead of undefined 
		$_VAN[i] = vanity[i]||null; 
})(window);