Bug 146709 Dates still do not work from main report to sub reports...
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/HTMLActionHandler.java
{
		try
		{
			if ( bookmark != null && bookmark.length( ) != 0 )
			{
				bookmark = URLEncoder.encode( bookmark, "UTF-8" );
				buffer.append( "&__bookmark=" );
				buffer.append( bookmark );
			}
		}
		catch ( UnsupportedEncodingException e )
		{
		}
	}
	protected void appendBookmark( StringBuffer buffer, String bookmark )
	{
		try
		{
			if ( bookmark != null && bookmark.length( ) != 0 )
			{
				bookmark = URLEncoder.encode( bookmark, "UTF-8" );
				buffer.append( "#" );
				buffer.append( bookmark );
			}
		}
		catch ( UnsupportedEncodingException e )
		{
		}
	}
}