obj=event.srcElement obj.setCapture() z=obj.style.zIndex obj.style.zIndex=100 x=event.offsetX y=event.offsetY down=true
obj.style.posLeft=document.body.scrollLeft+event.x-x obj.style.posTop=document.body.scrollTop+event.y-y
down=false obj.style.zIndex=z obj.releaseCapture()
Layer 1Layer 2Layer 3
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