Opera (testing with version 8.50) seems to have difficulties with iterating backwards through NodeList objects. The following tests iterate through each child of a div element via childNodes[index], where index:

1. iterates from 0 to 99:

   test1

2. iterates from 99 to 0:

   test2

3. is a random number from 0 to 99 such that every number is visited only once:

   test3

# iterations: