@yuhuihuang. Actually, when I check your site, every other page has mootools loaded except that page. That is very strange. I can’t tell you exactly what to do to fix it, since I don’t know what is causing it. What I want you to try is to either add the listing to another page or create a new page and add the listing. I want you to actually see it working on your site.
However, to show you exactly what I mean about Mootools missing on that page and not on the others, please look at these screenshots:
