SVG 1.1 dynamic update tests
Tests dynamic updates of the 'markerHeight' attribute of the SVGMarkerElement object
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS markerElement.getAttribute('markerHeight') is "0"
PASS markerElement.getAttribute('markerHeight') is "2"
PASS successfullyParsed is true
TEST COMPLETE