js取url参数

 function GetQueryString(name)
    {
        var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
        var r = window.location.search.substr().match(reg);
        if(r!=null)return  unescape(r[]); return null;
    }

var my_income_price = GetQueryString("totalMoney");