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
String encoding = getParameter( request, PARAM_EXPORT_ENCODING );
		
		if ( encoding == null )
			encoding = UTF_8_ENCODE;
		return encoding;
	}
	/**
	 * Check whether show the report title.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isShowTitle( HttpServletRequest request )
	{
		boolean isTitle = true;
		if ( "false".equalsIgnoreCase( getParameter( request, PARAM_SHOW_TITLE ) ) ) 
		{
			isTitle = false;
		}
		return isTitle;
	}
	/**
	 * Check whether show the toolbar.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isShowToolbar( HttpServletRequest request )
	{
		boolean isToolbar = true;