<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript" src="../js/jquery-1.8.3.js"></script>
<style type="text/css">
* { margin:0; padding:0; }
div.centent {
float:left;
text-align: center;
margin: 10px;
}
span {
display:block;
margin:2px 2px;
padding:4px 10px;
background:#898989;
cursor:pointer;
font-size:12px;
color:white;
}
</style>
</head>
<body>
<div class="centent">
<select multiple="multiple" id="select1" style="width:100px;height:160px;">
<option value="1">选项1</option>
<option value="2">选项2</option>
<option value="3">选项3</option>
<option value="4">选项4</option>
<option value="5">选项5</option>
<option value="6">选项6</option>
<option value="7">选项7</option>
</select>
<div>
<span id="add" >选中添加到右边>></span>
<span id="add_all" >全部添加到右边>></span>
</div>
</div>
<div class="centent">
<select multiple="multiple" id="select2" style="width: 100px;height:160px;">
<option value="8">选项8</option>
</select>
<div>
<span id="remove"><<选中删除到左边</span>
<span id="remove_all"><<全部删除到左边</span>
</div>
</div>
</body>
<script type="text/javascript">
/**
1.先获取到select1的标签
2.获取到select1下所有的option标签
3.判断哪一个option标签被选中了
4.被选中的标签添加到select2标签的下面
*/
document.getElementById("add").onclick=function(){
var select1=document.getElementById("select1");
var select2=document.getElementById("select2");
var ops=select1.getElementsByTagName("option");
for(var i=0;i<ops.length;i++){
var op=ops[i];
if(op.selected==true){
//被选中，把这个选项添加到select2
select2.appendChild(op);
i--;
}
}
}
document.getElementById("add_all").onclick=function(){
var select1=document.getElementById("select1");
var select2=document.getElementById("select2");
var ops=select1.getElementsByTagName("option");
for(var i=0;i<ops.length;i++){
select2.appendChild(ops[i]);
i--;
}
}
//jquery的方式
$(function(){
$("#add").click(function(){
//先获取select1下所有被选中的option的元素，添加到select2中取
$("#select2").append($("#select1 option:selected"));
});
("#add_all").click(function(){
$("#select2").append($("#select1 option"));
});
})
</script>
</html>
