Chat application AJAX polling

Question

In the project I am currently working on, we have the need to develop a web chat application, not a very complex chat, just a way to connect two people to talk about a very

Answer 1

I did this very same thing a few months back and had fun just playing around with the concepts. I actually used the forever-frame technique instead of polling.

The below code is my "comet" js file that contains the general concepts required to get a "party chat" setup.

function Comet(key) {

  var random = key;
  var title = 'Comet';
  var connection = false;
  var iframediv = false;
  var browserIsIE = /*@cc_on!@*/false;
  var blurStatus = false;
  var tmpframe = document.createElement('iframe');
  var nl = '\r\n';

  this.initialize = function() {
    if (browserIsIE) {
      connection = new ActiveXObject("htmlfile");
      connection.open();
      connection.write("");
      connection.write("