dynamic loops

[Aleksandra Polniak <opolniak@AIUT.COM.PL>]

Hello

I am new to SQR, so forgive me if this is "stupid question" but I can't find 
answer anywhere. I need to make a loop in my report in order to print only at 
most X measurements. Parameter X should be taken from user at runtime. 

I wrote something like that: 

Begin-Select loops=20
.....
End-Select.

This works great. 

But this code:

Begin-Select loops=[$max]
...
End-Select

doesn't work anymore. Is there any way to do what I want? And second question. 
Why the first construction execute loop exactly 20 times, not at most 20 times?!

I would be very grateful for help

Aleksandra Polniak