function openBook(theURL,winName) 
{
  var winName = 'bookWindow';
  var w = 1000;
  var h = 700;
  var scrollbars = 'yes';
  LeftPosition=(screen.width)?(screen.width-w)/2:100;
  TopPosition=(screen.height)?(screen.height-h)/2:100;
  
  settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scrollbars+',location=no,directories=no,status=0,menubar=no,toolbar=no,resizable=no';
  URL = theURL;
  window.open(URL,winName,settings);
}


//Event.observe(window, 'load', init, false);