Use of captureEvents() is deprecated. To upgrade your code, use the DOM 2 addEventListener() method. For more help http://developer.mozilla.org/en/docs/DOM:element.addEventListener
L'uso de captureEvents() ya no se consella. Ta esviellar o suyo codigo, faiga servir o metodo DOM 2 addEventListener(). Ta mas aduya, http://developer.mozilla.org/en/docs/DOM:element.addEventListener