Hi Jamie and Jonathan,
Thanks again for your help, I really appreciate it.
I think the problem is defenetly caused by a conflict with Mootools. All my GSAP code is done with JQuery() and not $() because that what joomla handels best. If I look at www.intek.jp/index.php where all the GSap script is working fine, Mootools was loaded in last position after all the Jquery and Gsap scripts. On the site at www.intek.jp/intek/index.php after the T3 frame work update and updating to Joomla 3.2 Mootools get loaded right after Jquery.min.js and before all the GSAP script.
As a test I removed mootools-core.js and that did the trick. Now I need to see if I even need mootools at all or find a way to load it after but I won't have much time to work on this today. I'll keep you guys posted. Thanks again.