title: can javascript receive socket request?
body: <p>How can I make my javascript client application receive socket requests? 
  I mean not response on request, but request itself.<br>
  Javascript is running in browser without HTML5.<br><br>
  The thing is that I want my web page to reload changed content but without the need of making request to the server each several minutes.<br>
  I hope that a server can make some request to javascript on the page, making it refresh the page. If not what could you suggest instead javascript in this scope.</p>