Only one checkbox checked at a time in javascript

Question

I have 3 checkbox, for which I want only 1 checkbox to be checked at a time. below is my fiddle for the html

JS fiddle

I want this to b

Answer 1

function selectOnlyThis(id) {
    for (var i = 1;i <= 4; i++)
    {
        document.getElementById(i).checked = false;
    }
    document.getElementById(id).checked = true;
}

 Option 1
 Option 2
 Option 3
 Option 4

It should help you