Here is a solution.
When I next URLs I always use this syntax.
$URLONE
& "&rdr=" & URLEncode($URLTWO)
& URLEncode("&rdr=" & URLEncode($URLTHREE))
& URLEncode(URLEncode("&rdr=" & URLEncode($URLFOUR)))
It needs all four steps.
The least worst options is to ensure that every one of the four steps does something even if it edits a dummy field to be blank based on a IF statement. So then each of the four step will happens, it's just that some of the steps may be steps which will be a waste of an API call. I don't think the planet will be significantly worse off than it already is with a wasted API call or three.
------------------------------
Mark Shnier (YQC)
Quick Base Solution Provider
Your Quick Base Coach
http://QuickBaseCoach.commark.shnier@gmail.com
------------------------------