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<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</head>
<body>
<script>
function unchecked(event,label) {
event.preventDefault();
var chinput = document.getElementById(label.getAttribute('for'));
chinput.checked =!chinput.checked
}
</script>
<input type="radio" id="gm_fifa"><label for="gm_fifa" onClick="unchecked(event,this)">Click</label>
</body>
</html>