type 属性可返回下拉列表的表单类型。对于下拉列表,类型总是 "select-one" 或 "select-multiple"。
selectObject.type
下面的例子返回下拉列表的表单类型:
<html>
<head>
<script type="text/javascript">
function getType()
{
alert(document.getElementById("mySelect").type
)
}
</script>
</head>
<body>
<form>
<select id="mySelect">
<option>Apple</option>
<option>Pear</option>
<option>Banana</option>
<option>Orange</option>
</select>
<input type="button" onclick="getType()"
value="Alert type of dropdown list">
</form>
</body>
</html>