micah1701/gist:3902167

## gistfile1.txt
<script>
/**
 * Show the time and update it every second
 *
 * clock_id (string)	DOM id value of element to update
 * offset (int) 	Optional value to modify local time by, usefull if synchronizing to another clock
 */
function clock(clock_id, offset)
{
	if(offset == null || offset == ""){ offset = 0; }
	var d = new Date();
	d.setMilliseconds( d.getMilliseconds() + offset * 1000 );
	var milliseconds = d.getMilliseconds();
	var timer_interval = 1000 - milliseconds; // run this function again, slightly less than 1 second from now
	$("#"+clock_id).html( ("0"+d.getHours()).slice(-2) +":"+ ("0"+d.getMinutes()).slice(-2) +":"+ ("0"+d.getSeconds()).slice(-2)  );
	setTimeout(function(){ clock(clock_id,offset); }, timer_interval );
}
</script>

<body onLoad="clock('local_time')">
	<h1 id="local_time"></h1>
</body>
	<script>
	/**
	* Show the time and update it every second
	*
	* clock_id (string) DOM id value of element to update
	* offset (int) Optional value to modify local time by, usefull if synchronizing to another clock
	*/
	function clock(clock_id, offset)
	{
	if(offset == null \|\| offset == ""){ offset = 0; }
	var d = new Date();
	d.setMilliseconds( d.getMilliseconds() + offset * 1000 );
	var milliseconds = d.getMilliseconds();
	var timer_interval = 1000 - milliseconds; // run this function again, slightly less than 1 second from now
	$("#"+clock_id).html( ("0"+d.getHours()).slice(-2) +":"+ ("0"+d.getMinutes()).slice(-2) +":"+ ("0"+d.getSeconds()).slice(-2) );
	setTimeout(function(){ clock(clock_id,offset); }, timer_interval );
	}
	</script>

	<body onLoad="clock('local_time')">
	<h1 id="local_time"></h1>
	</body>