I have made a registration form and have the following questions (with example answers):

childs name: Jonny
childs last name: Johnson

I assigned the variables "childonename" to the first and "childonelastname" to the second.

Later in the form I have another set of questions, the first question is "child 1 name:"

I would like to have this field be a calculated field, with the equation something like "childonename+childonelastname" and for the output to be: "Jonny Johnson" so that the info doesn't need to be entered twice, and so that the following questions apply to that child, and the info isn't entered for the wrong child by accident.

I take it that calculations are only numerical based? Is it possible to do something that would allow them to be able to use alphabet instead? If not how can I get around this problem?

Thanks a lot