<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>New Web Project</title>
</head>
<body>
<h1>New Web Project Page</h1>
Max Number:
<input id="maxnum" type="number" />
Seconds of delay:
<input id="delay" type="number" />
<br />
<button type="button" onclick="go()">
Go!
</button>
<button type="button" onclick="stop()">
Stop!
</button>
<p id="message1">
</p>
<p id="message2" style="font-size: 200px">
</p>
<script>
var interval;
function go() {
var maxnum = document.getElementById("maxnum").value;
var delay = document.getElementById("delay").value;
document.getElementById("message1").innerHTML = "you typed in maxnum=" + maxnum + " and delay=" + delay + "";
clearInterval(interval);
update();
interval = setInterval(function() {
update();
}, delay * 1000);
}
function stop() {
clearInterval(interval);
}
var prevnum = -1;
function update() {
var maxnum = document.getElementById("maxnum").value;
var number;
do {
number = Math.floor((Math.random() * maxnum) + 1);
} while (number == prevnum);
document.getElementById("message2").innerHTML = number;
// document.getElementById("message2").style.fontSize="xx-large";
prevnum = number;
}
</script>
</body>
</html>
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