UK's Nationwide was listed among the saints in The Register's article for not blocking "other" browsers:
What is going on on their website today proves that even a saint can make a typo .. and let it get to the production site un-tested..
At some point during the development of Internet Explorer someone must have thought: hey! what if a poor newbie makes a typo and uses () where the computer expects ? It won't work! How disappointing for them!
..so, they made IE accept using () to select elements from a list. I have no idea why, though one can always note that this is one of the minor details that can make a page "IE-only" without even the webmaster intending to exclude others. I'm not fond of conspiracy theories but "embrace and extend" might be a familiar phrase to some of my readers.
if (objList.options(objList.selectedIndex).value != "")
The inner set of () should have been  because they deal with the list of options in the selection element. (FireFox doesn't handle this either and gets a different script.)
There you go – a sinning Saint. A former typo turned into an embrace-and-extend weapon. Let's hope for a remorseful edit..