var flyerPopup;

function openBook(url){        
    if (flyerPopup)
        flyerPopup.close();
        
    flyerPopup = open("","APBook", "toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes,copyhistory=no,scrollbars=no,width=100,height=100");                
    flyerPopup.moveTo(0,0);
    flyerPopup.resizeTo(screen.availWidth,screen.availHeight);
    flyerPopup.focus();
    flyerPopup.location=url;
    return false;
}