execute action module

Called from any PIE screen, takes user to resource

action routine

Input: CGI data from UIG (which contains location of resource*)
Output: Prints http location to take user to resource URL

* Locations in the PIE database are either normal URLs, or URL-like references
to the resource database, of the form rdb://[location_id], linking to the
location table in the resource database.

PDL

If location parameter contains ://
    Set location to value of parameter
Else
    (Assume PIE itemid used to call script rather than location)
    Get location from viewitem table
If location has form rdb*
    Call getrdblocinfo routine to get URL
Else
    URL is location
If URL is ""
    Call onerror routine (which exits)
Print http location command with URL
Exit 0