MediaWiki:Gadget-UTCLiveClock.js

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function liveClock()
{
	appendCSS( "#utcdate a { font-weight:bolder; font-size:120%; }" );

	if (typeof(UTCLiveClockConfig)=='undefined') UTCLiveClockConfig = {};
	var portletId = UTCLiveClockConfig.portletId || 'p-personal';
	var nextNode =  UTCLiveClockConfig.nextNodeId ? document.getElementById(UTCLiveClockConfig.nextNodeId) : undefined;
	liveClock.node = addPortletLink( portletId, wgScript + '?title=' + encodeURIComponent(wgPageName) + '&action=purge', '', 'utcdate', undefined, undefined, nextNode );
	if( !liveClock.node ) return;

	showTime();
}
addOnloadHook(liveClock)

function showTime()
{

	var dateNode = liveClock.node;
	if( !dateNode ) return;
	
	var now = new Date();
	var hh = now.getUTCHours();
	var mm = now.getUTCMinutes();
	var ss = now.getUTCSeconds();
	var time = ( hh < 10 ? '0' + hh : hh ) + ':' + ( mm < 10 ? '0' + mm : mm ) + ':' + ( ss < 10 ? '0' + ss : ss );
	dateNode.firstChild.replaceChild( document.createTextNode( time ), dateNode.firstChild.firstChild );

	window.setTimeout(showTime, 1000);
}