Bug 136770 Cannot view report document from web viewer
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
{
		return getReportParameter( request, PARAM_IID, null );
	}
	/**
	 * Get report locale from Http request.
	 * 
	 * @param request
	 *            http request
	 * @return report locale
	 */
	public static Locale getLocale( HttpServletRequest request )
	{
		return getLocaleFromString( getParameter( request, PARAM_LOCALE ) );
	}
	/**
	 * Get report locale from a given string.
	 * 
	 * @param locale
	 *            locale string
	 * @return report locale
	 */
	public static Locale getLocaleFromString( String locale )
	{
		if ( locale == null || locale.length( ) <= 0 )
		{
			return Locale.getDefault( );
		}
		int index = locale.indexOf( '_' );
		if ( index != -1 )
		{