获取url参数 SQ.getQueryString("参数名") --javascript

JS={};

JS.getQueryString = function (name) {

    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return unescape(r[2]); return null;
}