Demo using ipinfo.io

See http://ipinfo.io/developers

Your IP Info

Code

   AJAX.request("http://ipinfo.io/json","GET",null,function(response){
       var result = "";

       for (var property in response) {
           result += property + ": " + response[property] + "
";
       }

       document.getElementById("content").innerHTML = result;
   },function(){
       document.getElementById("content").innerHTML = "AJAX request failed."
   });