strange regex problem?

```
What steps will reproduce the problem?

Im try to modify date.js to change keyword "now" and add "teraz" (mean now
in Polish) so I made a change:

now:/^n(ow)?|teraz/i

and tested like this:

Date.parse("now") OK
Date.parse("teraz") FAIL

...and ended with null :(

but when change to:

now:/^n(ow)?|xeraz/i
Date.parse("xeraz") OK

I have tested also:

now:/^teraz/i
Date.parse("teraz") FAIL

so the "t" char on the beginning is a problem, but why "today" works?

What version of the product are you using? On what operating system?

current date.js, IE and FF on XP

Please provide any additional information below.

```

Original issue reported on code.google.com by `Ksiezykm...@gmail.com` on 4 Feb 2009 at 2:25