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);

    // document.location.search is empty if no query string
    if (!querystring) { return {}; }

    // Remove the '?' via substring(1)
    querystring = querystring.substring(1);

    // '&' seperates key/value pairs
    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;
})();