<!--
function compress(data){
    var q = {}, ret = "";
    data.replace(/([^=&]+)=([^&]*)/g, function(m, key, value){
        q[key] = (q[key] ? q[key] + "," : "") + value;
    });
    for (var key in q) 
        ret = (ret ? ret + "&" : "") + key + "=" + q[key];
    return ret;
}
-->