Re: attach listeners/handlers to widget, then do some DOM-stuff - listeners gone?

I frequently use native .onmouseover/.onmouseout events in my animations, and I always try to follow some limitations, which can save me from a set of known unpredictable behaviours concerning this matter. First of all, defer all your handlers attachments as much, as you're sure, that calling a constructor will already have the correct getAbsoluteLeft() method call results at this point. Second thing is that, when you process these two events to enable/disable some UI effects for smoothness purposes have some default pauses to determine whether it's still necessary to call the mirrored animation, or it was just a micro-break like one, when you move a mouse from one element of <ul> list to another, while this list is attached to the listened DOM element. Also think about using Cell<...> objects as a possible substitutions for old-school Widget ones. 

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