I hate the Irish rail website (and all its bastard children) too.
E.g.: Go to
www.dart.ie and type gobbledegook into the 'from' and 'to' boxes, click 'go'
On the next page it'll tell you that the station names weren't recognised and to type correct ones in. Do this and hit Submit...
...and you get a page not found error.
(no, I don't type random stuff into
www.irishrail.ie to catch it out -- I was looking for dart journey times from Monkstown - which of course it doesn't recognise and insists you type Salthill - which was how I got the error)