Bug 110681 Reportlet
Web pages often use HTML tables instead to organize and position their content. In order to provide more flexibility for integrating report content into the customer web pages, it becomes necessary to introduce a new set of formats that return content as Reportlets or partial DHTML pages. These reportlets can then be included within web pages generated by the customers web application. This project focuses on producing content that is easily embeddable within an overall HTML page.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
/**
	 * URL parameter name that determins to support the SVG or not.
	 */
	public static final String PARAM_SVG = "__svg"; 
	/**
	 * URL parameter name that gives the page number to display the report.
	 */
	public static final String PARAM_PAGE = "__page"; 
	/**
	 * URL parameter name that gives the report design name.
	 */
	public static final String PARAM_ISNULL = "__isnull"; 
	/**
	 * URL parameter name that determines to support masterpage or not.
	 */
	public static final String PARAM_MASTERPAGE = "__masterpage"; 
	/**
	 * URL parameter name that determines whether the BIRT application is
	 * running in the designer or standalone.
	 */
	public static final String PARAM_DESIGNER = "__designer"; 
	/**
	 * URL parameter name that determines whether to overwrite the document or
	 * not.
	 */
	public static final String PARAM_OVERWRITE = "__overwrite"; 
	/**
	 * URL parameter name that gives the image ID to display.
	 */
	public static final String PARAM_IMAGEID = "__imageID";