Notes/Domino 4 and 5 Forum

Hello,
I'm a rookie in notes and need some help.
How can I convert this code from formula to script ?

@If
(tmp != "";
@Do
(FIELD test := test + @NewLine + tmp + @NewLine + "( " + @Name([CN];@UserName) + " " + @Text(@Now) +" )" + @NewLine;
FIELD tmp := "");"")

Thanks in advance