function openCentered(url, width, height) {
/***************************************************************************/
  if (document.all) {
    var x = window.screeLeft;
    var y = window.screenTop;
    var w = window.document.body.offsetWidth;
    var h = window.document.body.offsetHeight;
  }
  else {
    var x = window.screenX;
    var y = window.screenY;
    var w = window.outerWidth;
    var h = window.outerHeight;
  }
  var cx = Math.round((screen.availWidth - width) / 2);
  var cy = Math.round((screen.availHeight - height) / 2);

  window.open (url, null, 'resizable=yes,left=' + cx + ',top=' + cy + ',width=' + width + ',height=' + height+',scrollbars=yes');
}

function openPopUpAndRedir(url, width, height, url2) {
/***************************************************************************/
  if (document.all) {
    var x = window.screeLeft;
    var y = window.screenTop;
    var w = window.document.body.offsetWidth;
    var h = window.document.body.offsetHeight;
  }
  else {
    var x = window.screenX;
    var y = window.screenY;
    var w = window.outerWidth;
    var h = window.outerHeight;
  }
  var cx = Math.round((screen.availWidth - width) / 2);
  var cy = Math.round((screen.availHeight - height) / 2);

  window.open (url, null, 'resizable=yes,left=' + cx + ',top=' + cy + ',width=' + width + ',height=' + height+',scrollbars=yes');
  window.location.href=url2;
}

function openAnchor(url) {
/***************************************************************************/
window.location.href=url;
}

function openPopUpAndRedir2(url, url2) {
/***************************************************************************/
  var cx = 0;
  var cy = 0;
  window.open (url, null, 'resizable=yes,left=' + cx + ',top=' + cy + ',width=' + screen.availWidth + ',height=' + screen.availHeight+',scrollbars=yes');
  window.location.href=url2;
}