Jquery获得Request QueryString

QueryString = {
    data: {},
    Initial: function() {
        var aPairs, aTmp;
        var queryString = new String(window.location.search);
        queryString = queryString.substr(1, queryString.length); //remove   "?"   
        aPairs = queryString.split("&");
        for (var i = 0; i < aPairs.length; i++) {
            aTmp = aPairs[i].split("=");
            this.data[aTmp[0]] = aTmp[1];
        }
    },
    GetValue: function(key) {
        return this.data[key];
    }
}

//先初始化
QueryString.Initial();

//例:获得名为deliverQty的参数值
var deliverQty = parseInt(QueryString.GetValue(‘deliverQty‘));