ZUL

Name: xul/html (aka., zul)
File Extensions: zul, xul
Namespace: http://www.zkoss.org/2005/zul
Namespace shortcut: zul
Device: Ajax

XUL-compliant component sets. We adopt XUL for this language, if the specification is applicable, such as org.zkoss.zul.Tabbox and org.zkoss.zul.Grid. It basically contains all rich components for the Ajax devices (i.e., the browsers).

For more information, please refer to ZK Component Reference.