Temp IE7 style fix for forms.
A percentage-based layout does not seem to work in IE7, the fields show up as large as the initial text that is in them.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
Benjamin Niemann <pink at odahoda dot de>: Main developer of Python target.
Clinton Roy <clinton.roy at gmail dot com>: AST templates and runtime.