JavaScript display data on html via localhost -

i writing program related javascript. have 1 udp server , 1 udp client, client can send data server , display data through browser. show result, first open terminal type" node udpserver.js". after open browser , type "localhost:portnumber" result (text) shown. however, cannot control text display. want cut 2 frames (left , right). can display data simultaneously in left , right. how can that? much.

here udpserver.js:

// javascript document  //server.js  console.log("test ok");  var port = 1234;  var host = 'localhost';   var http = require('http');     var dgram = require('dgram');     var server = dgram.createsocket('udp4');      //as server ready receive messages, handle handler     server.on('listening', function () {     var address = server.address();     console.log('udp server listening on ' + address.address + ":" + address.port);     });      var mymes;   http.createserver(function (req, res) {     res.writehead(200, {'content-type': 'text/plain'});      server.on('message', function (message, remote) {         //print out message         mymes = message;         console.log(remote.address + ':' + remote.port +' - ' + message);         res.write('message:'+mymes+"\n");         //prepare response         var okbuffer = new buffer("ok " + message);         server.send(okbuffer, 0, okbuffer.length, remote.port, remote.address, function(err, bytes){             if (err){                 throw err;             }         //print out server's console we've sent response client         //console.log("ok sent client");          this.type = 'text/html';         });     });   }).listen(port); console.log('server running @ http://127.0.0.1:1234');      server.bind(port, host);