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/presentation/aggregation/parameter/ParameterGroupFragment.java
Collection fragments = new ArrayList( );
		IFragment fragment = null;
		for ( Iterator iter = parameterGroup.getParameters( ).iterator( ); iter
				.hasNext( ); )
		{
			Object obj = iter.next( );
			if ( obj instanceof ParameterDefinition )
			{
				ParameterDefinition scalarParameter = (ParameterDefinition) obj;
				if ( !scalarParameter.isHidden( ) )
				{
					switch ( scalarParameter.getControlType( ) )
					{
						case ParameterDefinition.TEXT_BOX :
						{
							fragment = new TextBoxParameterFragment(
									scalarParameter );
							break;
						}
						case ParameterDefinition.LIST_BOX :
						{
							fragment = new ComboBoxParameterFragment(
									scalarParameter );
							break;
						}
						case ParameterDefinition.RADIO_BUTTON :
						{
							fragment = new RadioButtonParameterFragment(
									scalarParameter );