smartforms

I need to include this code in the form.

I have to check the value stored in the variable

&WA_ACCOUNTDATA-ZAMOUNT& in the smartform based on the condition type.

where should I be using it? And is that all OR should I be declaring some parameters in the form?

Because I created 'Program Lines' under the text element node where this variable is used and wrote this code it gave me an error

/: IF &wac-kschl& = 'ZBET'.

&WA_ACCOUNTDATA-ZAMOUNT&

/: ELSE

&WA_ACCOUNTDATA-ZAMOUNT(IZ)&

/: ENDIF.

Thanks for your help in advance.

Santhosh