ipt>
</head>
<body>
<p>
Before you click on the "Select multiple" button, try to select more than one option (by holding down the shift or Ctrl key). Click on the "Select multiple" button and try again.
</p>
<form>
<select name="mySelect" size="3">
<option>Apple</option>
<option>Banana</option>
<option>Orange</option>
</select>
<input type="button" onclick="formAction()" value="Select multiple">
</form>
</body>
</html>
返回所选列表的文本值
<html>
<head>
<script type="text/javascript">
function getText()
{
var x=document.getElementById("mySelect")
alert(x.options[x.selectedIndex].text)
}
</script>
</head>
<body>
<form>
Select your favorite fruit:
<select id="mySelect">
<option>Apple</option>
<option>Orange</option>
<option>Pineapple</option>
<option>Banana</option>
</select>
<br /><br />
<input type="button" onclick="getText()" value="Show text of selected fruit">
</form>
</body>
</html>
删除列表的项目
<html>
<head>
<script type="text/javascript">
function formAction()
{
var x=document.getElementById("mySelect")
x.remove(x.selectedIndex)
}
</script>
</head>
<body>
<form>
<select name="mySelect">
<option>Apple</option>
<option>Banana</option>
<option>Orange</option>
</select>
<input type="button" onclick="formAction()" value="Remove option">
</form>
</body>
</html>
显示屏幕的信息
<html>
<body>
<script type="text/javascript">
document.write("Screen resolution: ")
document.write(screen.width + "*" + screen.height)
document.write("<br />")
document.write("Available view area: ")
document.write(screen.availWidth + "*" + screen.availHeight)
document.write("<br />")
document.write("Color depth: ")
document.write(screen.colorDepth)
document.write("<br />")
</script>
</body>
</html>
表格对象
改变表格的边框
<html>
<head>
<script type="text/javascript">
function changeBorder()
{
document.getElementById('myTable').border="10"
}
</script>
</head>
<body>
<table border="1" id="myTable">
<tr>
<td>100</td>
<td>200</td>
</tr>
<tr>
<td>300</td>
<td>400</td>
</tr>
</table>
<form>
<input type="button" onclick="changeBorder()" value="Change Border">
</form>
</body>
</html>
改变表格的间距
<html>
<head>
<script type="text/javascript">
function padding()
{
document.getElementById('myTable').cellPadding="15"
}
function spacing()
{
document.getElementById('myTable').cellSpacing="15"
}
</script>
</head>
<body>
<table id="myTable" border="1">
<tr>
<td>100</td>
<td>200</td>
</tr>
<tr>
<td>300</td>
<td>400</td>
</tr>
</table>
<form>
<input type="button" onclick="padding()" value="Change Cellpadding">
<input type="button"
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