What I was going to do is the user will input a number into a text box, then the browser will pop-up an alert that it will countdown ... seconds. Below is my code but nothing seems to working. Please help me. Thanks.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script type="text/javascript">
function timer(){
if(document.getElementById("time").value=="")||(isNaN(document.getElementById("time").value)==true)
alert("Please input a number");
else
alert("Start counting down ",(parseInt(document.getElementById("time").value))/1000," seconds");
setTimeout("alert('Times out');",time);
}
</script>
<input type="text" id="time"/>
<button onClick="timer();">Submit</button>
</body>
</html>
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