Bug 188502 Change labels in Export Report dialog
Can we consider changing the types in the drop down list in the Export Report dialog? doc to Word xls to Excel ppt to Powerpoint pdf to PDF postscript to PostScript
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
String appContextKey = (String) request
				.getAttribute( ATTR_APPCONTEXT_KEY );
		
		if ( appContextKey != null )
			map.put( appContextKey, request
					.getAttribute( ATTR_APPCONTEXT_VALUE ) );
		return map;
	}
	/**
	 * Returns the encoding for export data.
	 * 
	 * @param request
	 * @return
	 */
	public static String getExportEncoding( HttpServletRequest request )
	{
		String encoding = getParameter( request, PARAM_EXPORT_ENCODING );
		
		if ( encoding == null )
			encoding = UTF_8_ENCODE;
		return encoding;
	}
	/**
	 * Check whether show the report title.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isShowTitle( HttpServletRequest request )
	{