jquery.unparam.js

;
(function() {
    $.extend({
        unparam: function(param) {
            if (param[0] === '?') param = param.slice(1)
            var re = {}
            for (var i = 0, arr = param.split('&'), kv; kv = arr[i]; i++) {
                kv = kv.split('=')
                re[kv[0]] = kv[1]
            }
            return re
        }
    })

})()