What's this button for?

I'm working in a project for the Middle East. When I arrived to the office in Dubai and check my email through Outlook Web Access on a local machine this is what I saw:

I was caught by surprise and took some time to understand where each button was located. First, everything starts from the right, which is tricky because some of the buttons that in my normal screen would be on the right (last place) were now located on the left (last place). Second, the right alignment is very confusing on your eyes. You spend years used to a certain way, in this case left alignment, and your brain gets hard wired on how to look into a text. Routine is the worst enemy of flexibility!

Another curious thing is that Outlook Web Access showed most of the text in Arabic although some would still show up in English. As you can see Inbox, Calendar, Contacts and Task are shown in English while Public Folders, Rules and Options are in Arabic. I wonder why?

My eyes seemed to get constantly stuck on the Arabic text, they were feasting on its artistic beauty.