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;
	}
	/**
	 * URL encoding based on incoming encoding format.
	 * 
	 * @param s
	 *            string to be encoded.
	 * @param format
	 *            encoding format.
	 * @return
	 */
	public static String urlEncode( String s, String format )
	{
		String encodedString = s;
		if ( s != null )
		{
			try
			{
				encodedString = URLEncoder.encode( s, format );
			}
			catch ( UnsupportedEncodingException e )
			{
				encodedString = s;
			}
		}
		return encodedString;