Convert a query string to an associative array in js

A simple function to convert query strings to an associative array using javascript.

var queryConvert = function(){
    var queryStr = window.location.search,
      queryArr = queryStr.replace('?','').split('&'),
      queryParams = [];

    for (var q = 0, qArrLength = queryArr.length; q < qArrLength; q++) {
        var qArr = queryArr[q].split('=');
        queryParams[qArr[0]] = qArr[1];
    }

    return queryParams;
},

This query string - ?location=us&state=georgia - should return - [ location: us, state: georgia ]

What do you think? Any better methods?