function popupDisplay(){
	var myForm = document.signup;
	var email = myForm.header_email.value;
	emailPopUp = window.open('/subskrybuj.php?e=' + escape(email) ,'emailWin','width=490,height=420,scrollbars,resizable');
}

  var allow_popup = true;
  var nn = (document.layers) ? 1:0
  var ie = (document.all) ? 1:0

  function HidePopUp()
  {
     allow_popup=false;
  }