the JQuery works in FF, GC and O, but does noting in IE

the JQuery works in FF, GC and O, but does noting in IE

I've made up a slider and it works in Chrome, Firefox and Opera just as planned. But IE doesn't play like planned. It does follow the sequence, I've checked with the console, but noting happens. 

The main idea is that I've made up three slides wich show the content after a row of panels dissapear. 

My latest version is posted on the following JSFiddle http://jsfiddle.net/Reanimatie/thMSp/2/

Does anyone have a clue and is willing to give advice?