function init_SimpleTabs(start) {
	new SimpleTabs($('tab-block'), {
		entrySelector: 'h4',
		onSelect: function(toggle, container) {
			toggle.addClass('tab-selected');
			container.effect('opacity').start(0, 1); // 1) first start the effect
			container.setStyle('display', ''); // 2) then show the element, to prevent flickering
		}
	})
};