Get Query String value with jQuery

gistfile1.js

/**
 * Sourced from http://stackoverflow.com/questions/901115/get-query-string-values-in-javascript#answer-3855394
 * @author BrunoLM <brunolm at codingwise dot com>
 */
(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);

gistfile2.js

// Usage:
$.queryString["param"];

You shouldn't use jQuery for this.

Here's a plain JS module:
https://github.com/sindresorhus/query-string