不记得是哪地了 这个非常好 <html><head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>新建网页 4</title> </head><body> <script language=javascript> function move2right() { var op1=form1.D1.options,op2=form1.D2.options; var lastElement=null; for(var i=op1.length-1;i>=0;i--) if (op1[i].selected) { lastElement=form1.D2.insertBefore(op1[i],lastElement);
}} function all_move2right() { var op1=form1.D1.options,op2=form1.D2.options; var lastElement=null; while(op1.length>0) { op2.appendChild(op1[0]); } } function move2left() { var op1=form1.D1.options,op2=form1.D2.options; var lastElement=null; for(var i=op2.length-1;i>=0;i--) if (op2[i].selected) { lastElement=form1.D1.insertBefore(op2[i],lastElement);
这个非常好
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 4</title>
</head><body>
<script language=javascript>
function move2right()
{
var op1=form1.D1.options,op2=form1.D2.options;
var lastElement=null;
for(var i=op1.length-1;i>=0;i--)
if (op1[i].selected)
{
lastElement=form1.D2.insertBefore(op1[i],lastElement);
}}
function all_move2right()
{
var op1=form1.D1.options,op2=form1.D2.options;
var lastElement=null;
while(op1.length>0)
{
op2.appendChild(op1[0]);
}
}
function move2left()
{
var op1=form1.D1.options,op2=form1.D2.options;
var lastElement=null;
for(var i=op2.length-1;i>=0;i--)
if (op2[i].selected)
{
lastElement=form1.D1.insertBefore(op2[i],lastElement);
}}
function all_move2left()
{
var op1=form1.D1.options,op2=form1.D2.options;
var lastElement=null;
while(op2.length>0)
{
op1.appendChild(op2[0]);
}
}
</script>
<form name=form1><p>
<select size="7" name="D1" multiple style="width:50px">
<option value="0">AAA</option>
<option value="1">BBB</option>
<option value="3">CCC</option>
</select><select size="7" name="D2" multiple style="width:50px">
<option value="4">DDD</option>
<option value="5">EEE</option>
<option value="6">FFF</option>
</select></p><p>
<input type="button" value="<" name="B3" onclick="move2left()">
<input type="button" value="<<" name="B4" onclick="all_move2left()">
<input type="button" value=">>" name="B5" onclick="all_move2right()">
<input type="button" value=">" name="B6" onclick="move2right()"></p></form></body></html>