[TYPO3-english] ExtJS Problem IE6-8 only

[Kay Strobach]

Hello Guys,

I'm currently working on an alternative Interface for an existing page.
As there some restrictions i can't change the template of the page. That 
means i need to render the Ext View completly from the HTML markup.

I'm using ExtJS 3.0 shipped with TYPO3 4.3.1

This works fine in Firefox, Opera and Safari (all on Windows and uptodate).

See example:
http://cms.sn.schule.de/kay
Related Code:
http://cms.sn.schule.de/fileadmin/_special/benutzer/123/js/main.js

But in Internet Explorer 6,7,8 i got an error while ExtJS is creating 
the border viewport.

No debug version (ext-all.js):
	Zeile: 7
	Zeichen: 144173
	Fehler: 'events' ist Null oder kein Objekt

Debug version of ExtJS (ext-all-debug.js)
(-> indicates the debug error pointer of internet explorer 8)
	Zeile: 17621
	Fehler: 'events' ist Null oder kein Objekt

	    lookupComponent : function(comp){
         	if(typeof comp == 'string'){
	            return Ext.ComponentMgr.get(comp);
->	        }else if(!comp.events){
	            return this.createComponent(comp);
	        }
	        return comp;
	    },


I would be glad to get a hint.

Best regards
Kay