jquery-parse-query-string.js

(function($) {
	$.parseQueryString = function(query) {
		query = query || document.location.search;
		if (!query) return null;
		query = query.replace('?', '').split('&');
		var i, part, property, val, params = {};
		for (i = 0; i < query.length; i++) {
			part = query[i].split('=');
			property = part[0];
			val = part[1];
			if (property.substr(-2) == '[]') {
				var arName = property.slice(0, -2);
				(params[arName] || (params[arName] = [])).push(val);
			} else {
				params[property] = val;
			}
		}
		return params;
	};
})(jQuery);