4 Test that tabbing does not focus area element when its associated image is not rendered.
6 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
9 PASS document.activeElement.id is 'input1'
10 PASS document.activeElement.id is 'input2'
11 PASS document.activeElement.id is 'input3'
12 PASS successfullyParsed is true