jquery get uri param

querystring.js

(function($) {
	$.QueryString = (function(a) {
		if (a == "")
			return {};
		var b = {};
		for (var i = 0; i < a.length; ++i) {
			var p = a[i].split('=');
			if (p.length != 2)
				continue;
			b[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));
		}
		return b;
	})(window.location.search.substr(1).split('&'))
})(jQuery);