var timetableWindowParams = "width=800,height=640,status=yes,resizable=yes,menubar=no";
var charterWindowParams = "width=800,height=640,status=yes,resizable=yes,menubar=no";
var charterLink = 'http://google.com';
var doPopup = true; // use this to control behaviour of the gotoTimetable link
		                 // 'false' will toggle between the map and the timetable
		                 // 'true' will popup the timetable in a new window.