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/AbstractGetPageActionHandler.java
AbstractBaseActionHandler
{
	protected BaseAttributeBean __bean;
	
	protected String __docName;
	
	protected long __pageNumber;
	
	protected long __totalPageNumber;
	protected boolean __useBookmark = false;
	
	protected String __bookmark;
	
	protected boolean __svgFlag;
	
	protected ByteArrayOutputStream __page = null;
	protected ArrayList __activeIds = null;
	
	/**