function getQuery(name){

     var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");

     var r = window.location.search.substr(1).match(reg);

     if(r != null)

         return decodeURI(r[2]);

     return null;

 }

 function fn() {

     var url = decodeURI(window.location.href);

     var args = url.split('?');

     if (args[0] === url)

         return false;

     var arr = args[1].split('&');

     var obj = {};

     for (var i = 0; i < arr.length; i++) {

         var arg = arr[i].split('=');

         obj[arg[0]] = arg[1];

     }

     return obj;

 }