If there is, it would be a member of the oScript object, I would think (check the help file).

Another way to do it is create individual scripts for each event type that call a common function[1]. Have the individual scripts pass the function type and any objects needed to the common script like this:

   ' table post read script

   With CreateObject("Scripting.FileSystemObject")javascript:void(0);

      executeGlobal .openTextFile("common.vbs").readAll()

   End With

   commonFunction ("table post-read", oScript, oSession, oBusObj)

[1]: stackoverflow.com/.../1976323 (note: the code in user-defined scripts is automatically put into a Sub already, so you can't define a new Sub in user-defined scripts).