function window_onscroll()
{

  var el = document.getElementById('postcomment');
  if(el!=null)
  {
    if(typeof(document.media)=='string')
    {// only do this for ie
      var s;
      // scrolling offset calculation via www.quirksmode.org
      if (self.pageYOffset){
        s = self.pageYOffset;
      }else if (document.documentElement && document.documentElement.scrollTop) { 
        s = document.documentElement.scrollTop; 
      }else if (document.body) { 
        s = document.body.scrollTop; 
      }
      el.style.top= s + 30;
    }

    if(typeof(window.print)=='function')
    {// only do if not ie
      var x;
      // scrolling offset calculation via www.quirksmode.org
      if (self.pageXOffset){ 
        x = self.pageXOffset;
      }else if (document.documentElement && document.documentElement.scrollTop){ 
        x = document.documentElement.scrollLeft; 
      }else if (document.body) { 
        x = document.body.scrollLeft;
      }
      el.style.left = (548 - x) + "px";
    }
  }
}