双向选择链表框
实例：
Code<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>1</title>
<style type="text/css">
p {font-size: 11pt}
select {width: 120px}
</style>
<script type="text/javascript">
function $(id) {return document.getElementById(id);}
function moveRight() {
var leftSel = $("left");
var rightSel = $("right");
var options = leftSel.options;
for (var i=0; i<options.length; i++) {
if (options[i].selected) {
rightSel.appendChild(options[i]);
i--;
}
}
}
function moveLeft() {
var leftSel = $("left");
var rightSel = $("right");
var options = rightSel.options;
for (var i=0; i<options.length; i++) {
if (options[i].selected) {
leftSel.appendChild(options[i]);
i--;
}
}
}
function moveRightAll() {
var leftSel = $("left");
var rightSel = $("right");
while (leftSel.options.length > 0)
rightSel.appendChild(leftSel.options[0]);
}
function moveLeftAll() {
var leftSel = $("left");
var rightSel = $("right");
while (rightSel.options.length > 0)
leftSel.appendChild(rightSel.options[0]);
}
</script>
</head>
<body>
<div>
<table>
<tr><td><select id=left size=10 multiple>
<option value=a>option A</option>
<option value=b>option B</option>
<option value=c>option C</option>
<option value=d>option D</option>
<option value=e>option E</option>
</select></td>
<td><input type=button value="-->" onclick="moveRight()" /><br><br>
<input type=button value="<--" onclick="moveLeft()" /><br><br>
<input type=button value="-->>" onclick="moveRightAll()" /><br><br>
<input type=button value="<<--" onclick="moveLeftAll()" /></td>
<td><select id=right size=10 mutiple></select></td>
</tr>
</table>
</div>
</body>
</html>
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