Check first radio button with JQuery

Question

I would like to check the first radio button of each group. But there are some radio button that are disabled, so the script should ignore them and go to next non-disabled b

Answer 1

I tested the first answer and it doesn't resolve it. I had to use the following sentence:

jQuery("input:radio[name=groupName]:visible")[0].checked=true;

This check the first visible radio button with name = groupName