Bug 193875 we can not get an entir url by IHTMLActionHandler
we can not get an entir url by IHTMLActionHandler, so word emitter dose not write the right url. now hyperlink drill through in word emitter doesn't work.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
return true;
		return false;
	}
	/**
	 * Returns how to open attachment( inline or attachment )
	 * 
	 * @param request
	 * @return
	 */
	public static String getOpenType( HttpServletRequest request )
	{
		if ( "true".equalsIgnoreCase( getParameter( request, 
				PARAM_AS_ATTACHMENT ) ) )
			return IBirtConstants.OPEN_TYPE_ATTACHMENT;
		return IBirtConstants.OPEN_TYPE_INLINE;
	}
	/**
	 * Returns action name
	 * 
	 * @param request
	 * @return
	 */
	public static String getAction( HttpServletRequest request )
	{
		return getParameter( request, PARAM_ACTION );
	}
	/**
	 * Returns the dpi setting from http request
	 * 
	 * @param request