<html>
<head>
<title>下拉列表选择框</title>
<script>
alert("请退出");
var flag=confirm("请选择");
if(flag){
alert("欢迎光临");
}else{
alert("手别乱点");
}
var result=prompt("请输入用户名");
alert(result);
</script>
<style type="text/css">
</style>
</head>
<body>
<div id = "s1" style="float:left">
<div>
<select id="select1" multiple="multiple" style="100px;height:100px;">
<option>AAAAAA</option>
<option>BBBBBB</option>
<option>CCCCCC</option>
<option>DDDDDD</option>
<option>EEEEEE</option>
</select>
</div>
<div>
<input type="button" value="选中添加到右边" onclick="setToRight();"/>
<br/>
<input type="button" value="全部添加到右边" onclick="allToRight();"/>
</div>
</div>
<div id ="s2">
<div>
<select id="select2" multiple="multiple" style="100px;height:100px;">
<option>QQQQQQ</option>
</select>
</div>
<div>
<input type="button" value="选中添加到左边" onclick="setToLeft();"/>
<br/>
<input type="button" value="全部添加到右边" onclick="allToLeft();"/>
</div>
</div>
<script type = "text/javascript">
function setToRight(){
var select1 = document.getElementById("select1");
var select2 = document.getElementById("select2");
var options1 =select1.getElementsByTagName("option");
for(var i=0;i<options1.length;i++){
var option1 = options1[i];
if(option1.selected == true){
select2.appendChild(option1);
i--;
}
}
}
function allToRight(){
var s1 = document.getElementById("select1");
var s2 = document.getElementById("select2");
var ops = s1.getElementsByTagName("option");
for(var j = 0;j<ops.length;j++){
var ops1 = ops[j];
s2.appendChild(ops1);
j--;
}
}
function setToLeft(){
var s1 = document.getElementById("select1");
var s2 = document.getElementById("select2");
var opss=s2.getElementsByTagName("option");
for(var m = 0;m<opss.length;m++){
var op = opss[m];
if(op.selected == true){
s1.appendChild(op);
m--;
}
}
}
function allToLeft(){
var select2 = document.getElementById("select2");
var select1 =
document.getElementById("select1");
var options1 = select2.getElementsByTagName("option");
for(var n=0;n<options1.length;n++){
var opll = options1[n];
select1.appendChild(opll);
n--;
}
}
</script>
<input id="openButton" type ="button" value="打开窗口">
<input id="closeButton" type ="button" value="关闭窗口">
<input id="gobaidu" type ="button" value="去百度">
<script>
var openButton = document.getElementById("openButton");
var newWindow;
openButton.onclick = function(){
newWindow=open("https://www.baidu.com");}
var closeButton = document.getElementById("closeButton");
closeButton.onclick=function(){
newWindow.close();}
var gobaidu = document.getElementById("gobaidu");
gobaidu.onclick=function(){
location.href="https://baidu.com/";}
</script>
</body>
</html>