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/*
Examples From
JavaScript: The Definitive Guide, Fourth Edition
Legal matters: these files were created by David Flanagan, and are
Copyright (c) 2001 by David Flanagan. You may use, study, modify, and
distribute them for any purpose. Please note that these examples are
provided "as-is" and come with no warranty of any kind.
David Flanagan
*/
<html>
<head>
<script>
// This function displays the time in the status line.
// Invoke it once to activate the clock; it will call itself from then on.
function display_time_in_status_line()
{
var d = new Date(); // Get current time.
var h = d.getHours(); // Extract hours: 0 to 23.
var m = d.getMinutes(); // Extract minutes: 0 to 59.
var ampm = (h >= 12)?"PM":"AM"; // Is it am or pm?
if (h > 12) h -= 12; // Convert 24-hour format to 12-hour.
if (h == 0) h = 12; // Convert 0 o'clock to midnight.
if (m < 10) m = "0" + m; // Convert 0 minutes to 00 minutes, etc.
var t = h + ':' + m + ' ' + ampm; // Put it all together.
defaultStatus = t; // Display it in the status line.
// Arrange to do it all again in 1 minute.
setTimeout("display_time_in_status_line()", 60000); // 60000 ms is 1 minute.
}
</script>
</head>
<!-- Don't bother starting the clock till everything is loaded. The
-- status line will be busy with other messages during loading, anyway. -->
<body onload="display_time_in_status_line();">
<!-- The HTML document contents go here. -->
</body>
</html>
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