discard example
Using an accessKey to discard the circle
respectively the g element around the circle.
Test is ok if the circles are discarded, the left and the right ones directly,
the middle ones 2s retarded.
The top circle line is discarded with accessKey(a), the bottom with accessKey(b).
accessKey(a) to discard
accessKey(a) to discard 2s after click
accessKey(a) to discard with negative offset of 2s
accessKey(b) to discard group
accessKey(b) to discard group 2s after click
accessKey(b) to discard group with negative offset of 2s