Reg: sap script counter

Hi friends, very urgent, plz help me.

I am using DEFINE&SAPSCRIPT-COUNTER_0& = 0.

I want to increase this number per each line item in the layout.

so i am doing like &SAPSCRIPT-COUNTER_0(+)&. this is working fine when i used paragraph format in the command editor of the layout. but it is printing in the layout as well. but what i want is, it has to increase but should not print on the layout. so that i used command prompt in the command editor. then it is not getting increased.

Regrads,

venkat