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
UTFString = s;
			}
		}
		return UTFString;
	}
	/**
	 * Convert the string with the given encoding into UTF-8.
	 * 
	 * @param s
	 *            ISO-8895-1 string
	 * @param encoding
	 *            the current encoding of the string
	 * @return the converted UTF-8 string
	 */
	protected static String toUTFString( String s, String encoding )
	{
		String UTFString = s;
		String sourceEncoding = encoding;
		if ( s != null )
		{
			if ( sourceEncoding == null )
			{
				sourceEncoding = ISO_8859_1_ENCODE;
			}
			try
			{
				UTFString = new String( s.getBytes( sourceEncoding ),
						UTF_8_ENCODE );
			}
			catch ( UnsupportedEncodingException e )