$("tbody").on("change", "input", function (ev)
{
    console.log(this.name, this.value,  ev.target.className);
    var checked = $('.capex_opex_1:checked')
    var in_checked =  $('input.capex_opex_1')
    if (checked.length > 1) {
    in_checked.not(this).prop('checked', false).checkboxradio('refresh');}
});

var checked = "$('." + ev.target.className + ":checked')"
var in_checked =  "$('input."  +  ev.target.className +  "')"
if (checked.length > 1) {
in_checked.not(this).prop('checked', false).checkboxradio('refresh');}