var comment_started = false;

function remove_init_text(text)
{
  if (!comment_started && document.commentform.id_text.value == text){
    document.commentform.id_text.value = "";
    comment_started = true;
  }
}

function open_popup(address)
{
  var _width = parseInt(screen.availWidth / 4);
  var _height = parseInt(screen.availHeight / 2);

  window.open(address, '', 'width=' + _width.toString() + ',height=' + _height.toString() + ',scrollbars=1');
}