if(top.location!=self.location)
{
 var e = new RegExp('^(?:(?:https?|ftp):)/*(?:[^@]+@)?([^:/#]+)');
 
  matches = e.exec(document.referrer);
        if( matches[1].substring( matches[1].lastIndexOf("cfi.cn"))!="cfi.cn")
        {
        top.location=self.location;
        }

}