[xwiki-users] jQuery is undefined error for IE7

Hi, all, I am using jQuery for javascript, since it is conflicting with prototype, I use the jQuery help extension: http://extensions.xwiki.org/xwiki/bin/view/Extension/jQuery+Helpers, so far everything works fine on Firefox, the problem is the IE7, I got jQuery is undefined error from the UI library: $xwiki.jsx.use("jQuery.jQueryUI"), I can see the javascript code in firebug with last par of the code: .bind("blur",h)})})})(jQuery); I noticed that there is a ";" in the end, but in IE7, I checked the code from Microsoft Script Editor when I debug, it shows no ";", not sure if that is the problem. In IE7, I clicked the jQuery helper extension demo pages: bin/view/jQuery/Demo1 page and bin/view/jQuery/Demo2 page, they both gave me "jQuery is undefined" error. so this error happens to the extension as well. Could anybody help me with is issue? Thanks very much. Dave