URL criteria syntax

URL criteria syntax

Hi,
I'm trying to open a report based on a set of criteria. The criteria are:
  • The BkCourse_ID field is the same as the one entered on my stateless form that I'm invoking the report from.
  • The Booking_Status field is not like "Cancelled"
  • The Booking_Status field is not like "Exchanged out"

I can successfully open the report with the first two criteria as the filter, but I'm struggling to come up with how to add the 3rd to the URL coding. Here's what I have so far:


rec  =  Courses_Setup  [ID = input.Course];
openUrl("#View:Class_Bookings_Report2?BkCourse_ID=" + rec.Course_ID + "&Booking_Status=Cancelled&Booking_Status_op=19&Booking_Status=Exchanged_out&Booking_Status_op=19", "popup window");

Any help would be greatly appreciated.