From JavaScript Tutorial for Certificate Course UC Web applications Certificate -- Summer 97. byGeoffrey C. Fox, Tom Scavo
<SCRIPT LANGUAGE="JavaScript">
var timerID = null; // setTimeout handle
var running = false;
function stopclock() {
if ( running ) clearTimeout(timerID);
running = false;
}
function startclock() {
stopclock(); showtime();
}
function showtime() {
// Calculate and display current time:
document.clock.face.value = timeValue;
// Timeout for one second:
timerID = setTimeout("showtime()", 1000);
running = true;
}
</SCRIPT>
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