Radio Button Value for equation in forms

Replies: 0

I want to select the value of a radio button for my calculated field. But it doesnt work. The result field stays empty. What can I do? How can I post a link to this form? The form is not yet online.

Thank you very much!

((function(){

IF (fieldname8=1) return fieldname3+1,536;
IF (fieldname8=2) return fieldname3;
IF (fieldname8=3) return fieldname3/10;
})();