Create of "select" part of sql query in display results now also checks that a value is set for a post variable - to avoid a bug that can occur in Netscape 7.01 where mysterious post variables exist.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@1027 b72ed6b6-b9f8-46b5-92b4-906544132732