Bug 154805 Viewer needs to support extended report output formats
BIRT UI supports showing the available report output formats dynamically on preview options. And it requires viewer to support if user choose to preview report as extended output format.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/presentation/aggregation/layout/FramesetFragment.java
/*************************************************************************************
 * Copyright (c) 2004 Actuate Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Actuate Corporation - Initial implementation.
 ************************************************************************************/
package org.eclipse.birt.report.presentation.aggregation.layout;
import java.io.File;
import java.io.IOException;
import java.rmi.RemoteException;
import javax.servlet.RequestDispatcher;