function bigwin(url) {
  bigwin(url, '');
}

function bigwin(url, title) {
  if (url.indexOf('/') != 1)
    url = document.location.pathname.substr(0, document.location.pathname.lastIndexOf('/')) + '/' + url;
  url = '/bigwin.php?' + url;
  posn = title.indexOf(" ");
  while ( posn > -1) {
    title = title.substring(0,posn) + "%20" + title.substring(1+posn); 
    posn = title.indexOf(" "); 
  } 
  if (title != "") url = url + ':' + title;
  var width = screen.availWidth;
  var height = screen.availHeight;
  var top = 0;
  var left = 0;
  if (screen.availTop || screen.availLeft) { top = screen.availTop; left = screen.availLeft; }
  window.open(url, '_new', 'width='+width+',height='+height+',top='+top+',left='+left+',scrollbars=0,resizable=1,fullscreen=1');
}