<!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>无标题文档</title>
<script type="text/javascript">
function kaishi(){
alert("开始了!");
document.getElementById("kaishi").innerHTML = "开始了！";
}
function tiwen(){
var daan = prompt("请输入内容",daan);
if(daan != null){
document.getElementById("daan").innerHTML = daan;
}
}
function queren(){
var queren = confirm("确定要修改"+document.getElementById("daan").innerHTML+"?");
if(document.getElementById("daan").innerHTML != "" && queren == true){
document.getElementById("daan").innerHTML = "答案已经被修改！";
document.getElementById("daan2").style.backgroundColor = "#000";
}
}
function dianji(){
document.getElementById("shubiao").innerHTML="按钮被点击";
}
function clock(){
var time=new Date();
attime= time.getHours()+":"+time.getMinutes()+":"+time.getSeconds();
document.getElementById("clock").innerHTML = "当前时间："+attime;
}
var interval = setInterval("clock()",1000);
var ii=0;
function clock2(){
document.getElementById("clock2").innerHTML = "计数器："+ii;
ii=ii+1;
setTimeout("clock2()",1000);
}
var timeout = setTimeout("clock2()",1000);
function stopCount(){
clearTimeout(timeout);
}
</script>
</head>
<body>
<form id="form1" name="form1" method="post" action="">
<table width="500" border="1">
<tr>
<td><input type="button" name="button" id="button" value="警告" onclick="kaishi()"/></td>
<td id="kaishi"></td>
</tr>
<tr>
<td><input type="button" name="button1" id="button1" value="提问" onclick="tiwen()"/></td>
<td id="daan"></td>
</tr>
<tr>
<td><input type="button" name="button2" id="button2" value="确认修改" onclick="queren()"/></td>
<td id="daan2"> </td>
</tr>
<tr>
<td><input type="button" name="button3" id="button3" value="打开新窗口" onclick="javascript:window.open('test1_1.php','_blank','width=300;height=300');"/></td>
<td> </td>
</tr>
<tr>
<td><input type="button" name="button4" id="button4" value="鼠标事件测试" onclick="dianji()"/></td>
<td id="shubiao"></td>
</tr>
<tr>
<td><script type="text/javascript">
var date= new Date();
document.write(date);
</script></td>
<td id="clock"></td>
</tr>
<tr>
<td>
<input type="button" name="button5" id="button5" value="停止↑" onclick="javascript:clearInterval(interval);" />
<input type="button" name="button6" id="button6" value="停止→" onclick="stopCount()" />
</td>
<td id="clock2"></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
</form>
</body>
</html>
计数器那里