Convert Simple-Calendar To Monday To Sunday

Hi everyone, I’m using simple-calendar extension, and it works fine, but I need to change it a little bit.

Instead of print from Sunday to Saturday, I need to print from Monday to Sunday because here in Spain, we use this order for calendars…

Could any one help me?I tried some things but I only obtain a mess of days… :(

Thx in advance!

no one? :S