getIp（获取ip所对应的城市名称）:

/*获取当前城市所在的省*/ var myprovince = remote_ip_info['province']; /*获取当前城市所在的市*/ var mycity = remote_ip_info['city']; /*获取当前城市所在的区*/ var mydistrict = remote_ip_info['district']; $(function(){
      $("#city_1").citySelect({
          prov:myprovince,         city:mycity     }); });

通过IP定位初始为当前城市所在页面

/*通过IP定位初始城市设置*/ /*判断当前省份不为空*/ if(myprovince != undefined || mycity != undefined){
  /*读取cookie：由62行代码可看出 cityName对应的内容为 $cityname*/     var cityName = $.cookie("cityName"); /*将城市当前所在城市赋给￥city,然后进行判断*/     $city = mycity;     switch($city){
          case '城市名称1':             $cityname = 'url链接1';             break;         case '城市名称2':             $cityname = 'url链接2';             break;         case '城市名称4':             $cityname = 'url链接4';             break;         case '城市名称5':             $cityname = 'url链接5';             break;         default:             $cityname = '其它城市跳转的url链接地址';             break;     }     /*创建字符串：二级域名*/     $go_url =$cityname; /*将生成的二级域名写入网址栏*/     window.location.href = $go_url;     /*.新添加一个会话 cookie：$cityname为存储的内容*/ $.cookie("cityName", $cityname); }