Adding validations to see if radio button is not selected

Question

I have the following code:

 
1. question 1

     Strongly         


        

Answer 1

You should use logical operator && for your condition

if ( (thisfrm.question3[0].checked == false) && 
     (thisfrm.question3[1].checked == false) && 
     (thisfrm.question3[2].checked == false) && 
     (thisfrm.question3[3].checked == false) && 
     (thisfrm.question3[4].checked == false) )

Answer 2

Below code is more simple and clean for even biggners

if (!$("input[name='html_elements']:checked").val()) {
   alert('Nothing is checked!');
}
else {
  alert('One of the radio buttons is checked!');
}

check out this below fiddle demo

Visit http://jsfiddle.net/creators_guru/DBd79/