create an object from query string

javascript query string

var query = (function() {
    function decode(string) {
        return decodeURIComponent(string.replace(/\+/g, " "));
    }
    var result = {};
    if (location.search) {
        location.search.substring(1).split('&').forEach(function(pair) {
            pair = pair.split('=');
            result[decode(pair[0])] = decode(pair[1]);
        });
    }
    return result;
})();