References:
DOM 2 Core createElement() method
MSDN on
createElement() method
Firefox 1.5, Firefox 2, Firefox 3, Opera 9.27, Opera 9.51, Safari 3.1.2, Safari 4.0, Konqueror 4.1, Seamonkey 1.x, Seamonkey 2.x, NS 7.2, K-meleon 1.x, Galeon 2.0.4, Epiphany 2.22 all pass this test.