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/BirtViewerReportService.java
ParameterGroupDefinition paramGroup = new ParameterGroupDefinition(
				engineParam.getName( ), engineParam.getDisplayName( ),
				engineParam.getPromptText( ), null, cascade );
		List contents = convertParametersInGroup( engineParam.getContents( ),
				paramGroup, task );
		paramGroup.setParameters( contents );
		return paramGroup;
	}
	private static ParameterDefinition convertScalarParameter(
			IScalarParameterDefn engineParam, ParameterGroupDefinition group,
			IGetParameterDefinitionTask task )
	{
		Object handle = engineParam.getHandle( );
		ScalarParameterHandle scalarParamHandle = null;
		if ( handle instanceof ScalarParameterHandle )
			scalarParamHandle = (ScalarParameterHandle) handle;
		String name = engineParam.getName( );
		String pattern = scalarParamHandle == null ? "" : scalarParamHandle
				.getPattern( );
		String displayFormat = engineParam.getDisplayFormat( );
		String displayName = engineParam.getDisplayName( );
		String helpText = engineParam.getHelpText( );
		String promptText = engineParam.getPromptText( );
		int dataType = engineParam.getDataType( );
		int controlType = engineParam.getControlType( );
		boolean hidden = engineParam.isHidden( );
		boolean allowNull = engineParam.allowNull( );
		boolean allowBlank = engineParam.allowBlank( );
		boolean mustMatch = scalarParamHandle == null
				? false