<script>

function checkradio(o,x){

document.getElementsByName("inptB")[x-1].checked=o.checked

}

</script>

<input name="inptA" type="radio" id="inptA">aaa

<input name="inptA" type="radio" id="inptA">bbb

<input name="inptA" type="radio" id="inptA">ccc

<br>

<input name="inptB" type="radio" id="inptB">111

<input name="inptB" type="radio" id="inptB">222

<input name="inptB" type="radio" id="inptB">333