Bug 183733 Implement the IScriptOjectClassInfo to provide the class infromation to support the JS code assistant.
Engine should implement the IScriptObjectClassInfo interface to return the class information for script object.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
* @param totalPage
	 *            total page
	 */
	public void setTotalPage( long totalPage )
	{
		if ( totalPage > pageNumber )
		{
			totalPage = pageNumber;
			scriptContext.registerBean( "totalPage", new Long( totalPage ) );
			if ( reportContent instanceof ReportContent )
			{
				( (ReportContent) reportContent ).setTotalPage( totalPage );
			}
		}
	}
	/**
	 * get the current page number
	 * 
	 * @return current page number
	 */
	public long getPageNumber( )
	{
		return pageNumber;
	}
	/**
	 * get the total page have been created.
	 * 
	 * @return total page
	 */
	public long getTotalPage( )