String imageId = idPrefix + "inc";
String imageSrc = "image/timeIncrement.gif";
HtmlRendererUtil.addImageSources(facesContext, writer, imageSrc, imageId);
writer.startElement(HtmlConstants.IMG, null);
writer.writeIdAttribute(imageId);
writer.writeAttribute(HtmlAttributes.ONCLICK, "tbgIncTime(this)", false);
writer.writeClassAttribute("tobago-time-inc-image"
+ (hasSeconds ? " tobago-time-image-seconds" : ""));
writer.writeAttribute(HtmlAttributes.SRC, ResourceManagerUtil.getImageWithPath(facesContext, imageSrc), true);
writer.writeAttribute(HtmlAttributes.ALT, "", false); // TODO: tip