ckeditor是fckeditor html编辑器了一个升级版本，用过fckeditor的站长都知道,由于其打开速度的不理想把fckeditor用于网站做为在线编辑器并不是明智的选择，ckeditor正好弥补了这一缺陷，ckeditor是由Frederico Knabben.针对网络而开发的在线编辑器。它提供了令人吃惊的性能、充分无障碍和强大而可扩展的javascr ipt API。-Ckeditor FCKeditor HTML editor is an upgraded version,

Intro javascr ipt plugin, with this plugin can you indicate on your webpage the steps like a tutorial fpor the user.

jTopo（Javascr ipt Topology library)是一款完全基于HTML5 Canvas的关系、拓扑图形化界面开发工具包。 -jTopo (Javascr ipt Topology library) is a relationship based entirely on HTML5 Canvas, and topology graphical interface development kit.