Preserved Topic: an event for the layer, no matter what

how do i get IE to recognize a mouseover of a layer even if a link who's inside the layer gets its mouseover handler called first ? what im looking to do is get the name of the layer on which im mousing over even if theres links in the layer that have mouseovers. in NN6 this done by Event.currentTarget.id and in NN4 this is the Event.target.id - is there an equivalent?

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<DIV ID="blah1"><A HREF="" ONMOUSEOVER="alert(this.parentNode.id);" ID="blah2">PARENT</A></DIV>