qBittorrent/src/webui/properties.html

<div class="toolbarTabs">
	<!-- <div style="float:right;padding-top:3px;"><img src="images/icons/help.gif" width="16" height="16" alt="Help" /></div> -->
	<ul id="propertiesTabs" class="tab-menu">
		<li id="PropGeneralLink" class="selected"><a>_(General)</a></li>
		<li id="PropTrackersLink"><a>_(Trackers)</a></li>
		<li id="PropFilesLink"><a>_(Files)</a></li>
	</ul>
	<div class="clear"></div>
	<div id="propertyTab"></div>
</div>

<script type="text/javascript">

	MochaUI.initializeTabs('propertiesTabs');
	MochaUI.updateContent({
			'element':  $('properties'),
		        'childElement': $('propertyTab'),
			'url':       'prop-general.html'
		});

	$('PropGeneralLink').addEvent('click', function(e){
		MochaUI.updateContent({
			'element':  $('properties'),
		        'childElement': $('propertyTab'),
			'url':       'prop-general.html'
		});
	});

	$('PropTrackersLink').addEvent('click', function(e){
		MochaUI.updateContent({
			'element':  $('properties'),
			'childElement': $('propertyTab'),
			'url':       'prop-trackers.html'
		});
	});

	$('PropFilesLink').addEvent('click', function(e){
		MochaUI.updateContent({
			'element':  $('properties'),
			'childElement': $('propertyTab'),
			'url':       'prop-files.html'
		});
	});

</script>