日期:2014-05-16  浏览次数:20354 次

javascript 选中select中的某个元素(初学者)
<html>
	<head>
		<title>test.................</title>
		<script language="javascript">
		function xjh() {			
			var IdType = document.getElementsByName("IdType");
			for (var i = 0; i < IdType[0].length; i++) {
				if (IdType[0].options[i].value == 2) {
					IdType[0].options[i].selected = true;
				}
			}
		}
		</script>
	</head>
	<body onload="xjh()">
		<form name='form1'>
			<select name="IdType">
				<option value="1">身份证</option>
				<option value="2" >户口本</option>
				<option value="3" >士官长</option>
			</select>			
		</form>
	</body>
</html>