Loop Change Radios

HTML

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<input type="radio" id="rad1" value="0" checked />
<div id="stat">0</div>

JavaScript

var timeout;
function bloop() {

    // lets say this is the ajax
    if(!$("#rad1").prop("checked")){
    	$("#rad1").prop("checked", true).val("1");
    } else { 
    	$("#rad1").prop("checked", false).val("0");
    }
    
    $("#stat").text($("#rad1").val());

}
timeout = setInterval(function(){ bloop(); }, 2000);