使用js获取URL地址栏里面的参数， 获取请求链接参数，函数定义如下

function getUrlRequestParam(name) {
    var paramUrl = window.location.search.substr(1);
    var paramStrs = paramUrl.split('&');
    var params = {};
    for (var index = 0; index < paramStrs.length; index++) {
        params[paramStrs[index].split('=')[0]] = decodeURI(paramStrs[index].split('=')[1]);
    }
    return params[name];
}