Undefined caused start in desktop browser not running

Don’t know if this is correct if you didn’t click radio button but get its value.

a= Radiobutton1.value
If (a ==undefined) then
If(a == undefined then
a = 11
End if
End if

Is a global if I defined dim a in grobal code?

any variable outside function is global

Thanks a lot. Long time haven’t code…

Tip: If you’re pasting code, html or config files, surround it by triple back ticks (```) and it will be fomatted properly.