Well, thank you for your answers. The code I am using is something like this:

hserin [skip 2, str var\4 \32]

I know that I´m gonna recieve numbers, so I need to do something like this:

if var == 100 then
code here...
else
if var < 100 then
code her...
else
code here...
endif
endif

just that var contains ascii data. I had already though about some code to convert that ascii data to numbers but I´d like to know if there is something quicker because I receive data from 1 to 3 digits and I´m trying to write the less lines possible.

Thanks to all of you again.

Armando Hdez.