function showDiv() {
    document.getElementById('overDivX').style.visibility='visible';
    if(window.addEventListener){ // Mozilla, Netscape, Firefox
      object.addEventListener('onresize', onWindowResize, false);
    } else { // IE
      window.attachEvent('onresize', onWindowResize);
    }
    onWindowResize();
  }
  function closeDiv() {
    /*alert(document.getElementById('overDivX').innerHTML);*/
    document.getElementById('overDivX').style.visibility='hidden';
  }
  function onWindowResize() {
    var bw = document.body.scrollWidth;
    var dw = document.getElementById('overDivX').style.pixelWidth;
    document.getElementById('overDivX').style.pixelLeft = Math.round((bw-dw)/2)-420;
  }