Bug 132914 "Invalid page number" error message is hard coded.
"Invalid page number" error message is hard coded in DocumentProcessor.java. This must be externalized into *.properties file. If there are other hard coded error messages, please also externalize.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/AbstractBaseActionHandler.java
* Paser returned report ids.
	 * 
	 * @param activeIds
	 * @return
	 * @throws RemoteException
	 */
	protected ReportId[] parseReportId( ArrayList activeIds )
			throws RemoteException
	{
		if ( activeIds == null || activeIds.size( ) <= 0 )
		{
			return null;
		}
		java.util.Vector ids = new java.util.Vector( );
		for ( int i = 0; i < activeIds.size( ); i++ )
		{
			String id = ( String ) activeIds.get( i );
			int firstComma = id.indexOf( ',' );
			if ( id == null || firstComma == -1 ) 
			{
				AxisFault fault = new AxisFault( );
				fault.setFaultCode( new QName(
						"DocumentProcessor.parseReportId( )" ) ); 
				fault.setFaultString( "Invalid id format. Id= " + id ); 
				throw fault;
			}
			int secondComma = id.indexOf( ',', firstComma + 1 );
			if ( secondComma == -1 )
			{
				secondComma = id.length( );