<html>
<head>
<title>Untitled</title>
<script >
function demo()
{
alert ("the first java srcipt");
}
</script>
</head>
<body>
<form ><input type="submit" id="tijiao" value="提交" Onclick="demo()"> </form>
</body>
</html>
<html>
<head>
<title>Untitled</title>
<script >
function demo()
{
alert ("the first java srcipt");
}
</script>
</head>
<body>
<form ><input type="submit" id="tijiao" value="提交" Onclick="demo()"> </form>
</body>
</html>