// IE6 Fix was sonst,
// Siehe http://groups.google.com/group/clientside/browse_thread/thread/43e0a5bc179d9da2/5bfa784378b76a41?lnk=gst&q=getcomputedstyle#5bfa784378b76a41
Element.implement({
    getComputedStyle: function(property){
        if (this.currentStyle) return this.currentStyle[property.camelCase()];
        if (Browser.Engine.trident4) { 
            return null; 
        }
        var computed = this.getDocument().defaultView.getComputedStyle(this, null);
        return (computed) ? computed.getPropertyValue([property.hyphenate()]) : null;
    }
});