向URL末尾添加查询字符串参数的辅助函数及获取Url的参数函数

function addURLParam(url,name,value){    url += (url.indexOf('?')==-1 ? '?' : '&');    url += encodeURIComponent(name) + '=' + encodeURIComponent(value);    return url;  }  

获取

/*获取URL参数*/function getQueryString(url, name) {    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");    var r = url.match(reg);    if (r != null) return unescape(r[2]);    return null;}