toQueryString.js

YUI('lang', function (Y) {
	YAP.toQueryString = function (obj, name) {
		switch (Y.Lang.type(obj)) {
			case 'undefined':
			case 'null':
				return name ? encodeURIComponent(name) + '=' : '';

			case 'boolean': obj = +obj; // intentional fallthrough
			case 'number':
			case 'string':
				return encodeURIComponent(name) + '=' + encodeURIComponent(obj);

			case 'array':
				var s = [], i, l;
				name = name + '[]';
				for (i = 0, l = obj.length; i < l; i++) {
					s[i] = arguments.callee(obj[i], name);
				}
				return s.join('&');

			case 'object':
				var s = [],
					begin = name ? name + '[' : '',
					end = name ? ']' : '',
					key;
				for (key in obj) {
					// the '___' business is for caja.
					if (obj.hasOwnProperty(key) && p.slice(-3) !== '___') {
						s.push(arguments.callee(obj[key], begin + key + end));
					}
				}
				return s.join("&");

			default: return ''; // functions, regex, errors not acceptable
	};
});