appendChild和RemoveChild

对一个下拉列表框内的option进行添加和删除的实例，说明appendChild和RemoveChild的用法。

<head>

function RemoveMe()

{

var o_ddlTest;

o_ddlTest=document.getElementById("ddlTest");

if (o_ddlTest.options.length != 0)

{

var selectedIndex;

selectedIndex = o_ddlTest.options.length - 1;

selectedOption = o_ddlTest.options(selectedIndex);

o_ddlTest.removeChild(selectedOption);

}

function addNew(){

var newOption = document.createElement("OPTION");

newOption.value="newOne";

newOption.innerText="newOne2";

newOption.selected = true;

o_ddlTest=document.getElementById("ddlTest");

o_ddlTest.(newOption);

}

</script>

</head>

<body>

<label>

</select>

</label>

</form>

</body>

</html>

posted @ 2007-04-12 14:54 阿一(杨正祎) 阅读(5310) 评论(2) 收藏举报

刷新页面返回顶部