select 선택시 해당 값을 표시하기
<html>
<head>
<title>TEST</title>
<script type="text/javascript">
function changeEvent(event)
{
document.getElementById('test_div').innerHTML = event.target.value ;
}
</script>
</head>
<body>
<label>Choose an select: </label>
<select size="1" onchange="changeEvent(event);">
<option value='1'>value1</option>
<option value='2'>value2</option>
<option value='3'>value3</option>
</select>
<div id='test_div'></div>
</body>
</html>