<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" language="javascript">
var n = 0, speed = 500, STEP = 110;
var fppt = "this is PaoMaDeng example,you can change show content!";
function run() {
document.ppt.cc.value = fppt.substr(n, fppt.length - n);
n++;
if (n >= fppt.length)
n = 0;
}
function change() {
fppt = document.newppt.newcc.value;
while (fppt.length <= 10) {
fppt = fppt.concat(" ");
}
}
function startRun() {
id = setInterval("run()", speed);
}
function speedUp() {
clearInterval(id);
speed = speed - STEP;
id = setInterval("run()", speed);
}
function speedDown() {
clearInterval(id);
speed = speed + STEP;
id = setInterval("run()", speed);
}
function pause() {
clearInterval(id);
}
</script>
</head>
<body οnlοad="startRun();">
<form name="ppt">
跑馬燈演示：<input name="cc">
</form>
<form name="newppt">
<b>Please input new content!</b><br>
<input type=text name="newcc">
<input type=button name="Press1" value="Sub" onclick