That does the trick

Thanks

Hej Lumumba, your code unfortunately doesn't make the trick for me. Let>Var=rate Let>VarValidateResult=%Var%/1 If>VarValidateResult=0,NotANumber If I execute it, VarValidateResult is equal to "rate/1" and not to 0 as you say.. That's too bad! Thanks any way I hope we will soon be able to end this to...

I would be glad to have the next release for free :) Thanks armsys for the hand, but your code is not still what I want, since it will return true, even if rate is not passed as parameter.. I have tried several around. Nothing worked. Perhaps the key is to do so: Let>xRate=rate And then some VB scri...