code: @Override
  	public void openConditionalComment(String expression) {
  		StringBuilder sb = new StringBuilder(PRE_TAG);
  		sb.append(expression).append(POST_TAG);
  		try {
  			out.write(sb.toString());
  		} catch (IOException e) {
  			throw new JawrLinkRenderingException(e);
  		}
  	}
docs: /*
  (non-Javadoc)
  
  @see
  net.jawr.web.resource.bundle.iterator.ConditionalCommentCallbackHandler#
  openConditionalComment(java.lang.String)