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function QueryStringToJSON() {            
    var pairs = location.search.slice(1).split('&');
    
    var result = {};
    pairs.forEach(function(pair) {
        pair = pair.split('=');
        result[pair[0]] = decodeURIComponent(pair[1] || '');
    });

    return JSON.parse(JSON.stringify(result));
}

var data = { one: 'first', two: 'second' };
var result = $.param(data);