I want to use the Server-push technology to create my website in Win98+Apache.  However when I use the following code:
while(!connection_aborted()){
  echo 'Hello.';
  //..some other code..
  flush();
  sleep(5);
  set_time_limit(10);  //to prevent the code from time limit
}
However, the code doesn't send 'Hello' to the Browser(IE 6.0) every 5 seconds, Actually It DOESN'T SEND ANY CODE TO THE BROWSER.  I am confused, my boss is ANGRY at my slow work.  Please help me.  Thank you.