Hooking the url when presenting a link from blocks

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Hi,
Lets say that this is my structure:
en
   page1
   page2
ru
   page1
   page2

If I will create a link in the content block (for example) it will be rendered to be:

/en/page1
or
/ru/page2
Is there anyway that I can hook the link before the presentation and remove the prefix /ru ?
I am using the domain mapper add-on so if I map the site to be:
http://www.mydomain.ru/page1 , but now it ishttp://www.mydomain.ru/ru/page1 (with extra ru)

Hope you got me.
Thanks