} else if(wicketId.startsWith("agent_")) {
String title = elt.getAttribute("title");
if (Strings.isEmpty(title))
title = new StringResourceModel("isi.defaultAgentButtonText", this, null, "Help").getObject();
AgentLink link = new AgentLink(wicketId, title, elt.getAttribute("responseAreaId"));
link.add(new AttributeRemover("title", "responseAreaId"));
return link;
} else if (wicketId.startsWith("image_")) {
String src = elt.getAttribute("src");
ResourceReference imgRef = getRelativeRef(src);