Bug 239300 [TabbedProperties] underline missing from tab label when tab has focus
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/internal/views/properties/tabbed/view/TabbedPropertyList.java
} else {
			/*
			 * the selected tab is near the top.
			 */
			topVisibleIndex = selectedElementIndex;
			bottomVisibleIndex = selectedElementIndex + tabsThatFitInComposite
				- 1;
		}
		layoutTabs();
	}
	/**
	 * Layout the tabs.
	 * 
	 * @param up
	 *            if <code>true</code>, then we are laying out as a result of
	 *            an scroll up request.
	 */
	private void layoutTabs() {
		
		
		
		if (tabsThatFitInComposite == NONE || elements.length == 0) {
			FormData formData = new FormData();
			formData.left = new FormAttachment(0, 0);
			formData.right = new FormAttachment(100, 0);
			formData.top = new FormAttachment(0, 0);
			formData.height = getTabHeight();
			topNavigationElement.setLayoutData(formData);
			formData = new FormData();
			formData.left = new FormAttachment(0, 0);