Plain Code

// http://seattlesoftware.wordpress.com/2008/01/16/javascript-query-string/
$(function() {
    Sentimnt.Search.init();
    Sentimnt.Global.externalLinks();

    location.querystring = (function() {
        // The return is a collection of key/value pairs
        var queryStringDictionary = {};

        // Gets the query string, starts with '?'
        var querystring = decodeURI(location.search);
        if (!querystring) {
            return {};
        }

        querystring = querystring.substring(1);
        var pairs = querystring.split("&");

        // Load the key/values of the return collection
        for (var i = 0; i < pairs.length; i++) {
            var keyValuePair = pairs[i].split("=");
            queryStringDictionary[keyValuePair[0]]
                    = keyValuePair[1];
        }

        // toString() returns the key/value pairs concatenated
        queryStringDictionary.toString = function() {
        if (queryStringDictionary.length == 0) {
            return "";
        }
        var toString = "?";
        for (var key in queryStringDictionary) {
            toString += key + "=" +
            queryStringDictionary[key];
        }
        return toString;
    };

    // Return the key/value dictionary
    return queryStringDictionary;
})();