ค่า radio ไม่ไปครับ ส่งไปโดย javascript -

<script language="JavaScript">
	function openPopup()
	{
		var work = "0";
		if(document.getElementById('work1').checked == true)
		{
			work = "1";
		}
		if(document.getElementById('work2').checked == true)
		{
			work = "2";
		}
		window.open('test_insert.php?id=100&work='+work,'_self');
	}
</script>

<input type="radio" name="work1" id="work1" value="1" checked>
<input type="radio" name="work1" id="work2" value="2" checked>

<input type="button" name="ok1" value=" ตกลง " onClick="openPopup();">

<input type="radio" name="work1" id="work11" value="1" checked>
<input type="radio" name="work1" id="work12" value="2">

<input type="button" name="ok1" value=" ตกลง " onClick="popup()">

<script>
function popup(){
	var workObj = document.getElementsByName('work1');      
	for(i=0;i<workObj.length;i++){
		if(workObj[i].checked){
			var work = workObj[i].value;
			break;
		}
	}
	window.open('test_insert.php?id=100&work='+work,'_self');
}
</script>

<input type="radio" name="work1" id="work1" value="1">
<input type="radio" name="work1" id="work1" value="2">

<input type="button" name="ok1" value=" ตกลง " onClick="window.open('test_insert.php?id=100&work='+document.querySelector('input[id=work1]:checked').value,'_self');">