<html>
<head>
<script language="javascript" >
function checkSubmit(){
if ($('username').value=="maoge"&&$("password").value=="baqi"){
return true;
}else{
return false;
$("username").value="";
$("password").value="";
}
}function $(id){
return document.getElementById(id);
}
</script>
</head>
<body>
<form action="demo7_1.html" >
用户名<input type="text" id="username"/><br/>
密  码<input type="text" id="password"/><br/>
      <input type="submit" value="登陆" onclick="return checkSubmit();"/>
</body>
</html>
<html>
<head>
<title>good web</title>
<script language="javascript">
function Jump(){
clearInterval("mytime");
window.open("http://www.baidu.com/index.php?tn=sogouie_dg");
}setTimeout("tiao()",5000);function changeSec(){
$("myspan").innerText=parseInt($("myspan").innerText)-1;
}
var mytime=setInterval("changeSec()",1000);
function $(id){
return document.getElementById(id);
}
</script>
</head>
<body>
<span id="myspan">5</span>
</body>
</html>
<html>
<head>
</head>
<body>
good luck
</body>
</html>
为什么最后读秒完了不能挑战过去?
setTimeout("tiao()",5000);//有这个函数tiao的定义?
function changeSec(){
$("myspan").innerText=parseInt($("myspan").innerText)-1;
}
没看到这儿当倒计时到达0时有调用Jump方法,这怎么会自己跳转呢?不用说,估计是copy的代码,这样改:function Jump(){
clearInterval("mytime");
window.open("http://www.baidu.com/index.php?tn=sogouie_dg");
}function changeSec(){
$("myspan").innerText=parseInt($("myspan").innerText)-1;
if(parseInt($("myspan").innerText)<=0)
Jump();
}
var mytime=setInterval("changeSec()",1000);
function $(id){
return document.getElementById(id);
}