function getUrl(name="") {

    var url = location.search; //获取url中"?"符后的字串

    var theRequest = new Object();

    if (url.indexOf("?") != -1) {

        var str = url.substr(1);

        strs = str.split("&");

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

            theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);

        }

    }

   if(name == ""){

      return theRequest;

   }else{

      return theRequest[name]?theRequest[name]:'';

   }

}