base_url() in error_pages

[eluser]Skuja[/eluser]
[quote author="TheFuzzy0ne" date="1238175777"]
Why not write your own helper that you can just include/require? The helper file can load the configuration itself.[/quote]

Didn't get this. Whats the purpose of writing my own helpers, if i am not allowed to load them in error pages.

All i want to do is to access my base url variable without redefining it in multiple places.