var my = ReadCookie('my');
var stday = ReadCookie('stday');
var launchSpan = ReadCookie('launchSpan');
Event.observe(window, "load", function(){

    new Control.CypopupCalendar("book_date", "book_time", stday,
                                launchSpan, "../reservedesk/lib/ajax/getOffPlan.php", true);

    new Control.CypopupTzoneSelect("book_time", "usefullMsg", "book_date", "../reservedesk/lib/ajax/getTimeZone.php", "");
},false)