function openWindow(){
var ifOpen = confirm("are you sure open it?");
if(ifOpen)
{
var webaddress = prompt("input","http://www.xianlaiwan.cn");
window.open(webaddress,"_blank","width=400,height=500,menubar=no,toolbar=no");
}
function openWindow(){
var newWin = confirm("是否打開新窗口？");
if(newWin==true){
var newWindow = prompt('');
window.open(newWindow);
}else
newWin.close();
}
//定義"改變顏色"的函數
function qq(){
var vic=document.getElementById("con");
vic.style.color="red";
vic.style.background="#ccc";
}
//定義"改變寬高"的函數
function ww(){
var viv=document.getElementById("txt");
viv.style.width="300px";
viv.style.height="300px";
}
function rec(){
var shy=confirm("是否打開新窗口？");
if(shy==true)
{
window.open('http://www.baidu.com','_blank','width=400,height=500,menubar=no,toolbar=no');
}
else
{
<script type="text/javascript">
function add(){
var p1 = document.getElementById("p1");
id="p1";
p1.className="one";
}
function modify(){
var p2 = document.getElementById("p2");
id="p2";
p2.className="two";
