[TYPO3] Real URL and language issue

[atul]

Hi all,
I am facing some problems regarding real url and language settings.
1) Suppose my base url is www.domainname.com when I open it by default  
it redirects to http://www.'domainname'.com/en/'pathsegment'/ .
But I want only  http://www.'domainname'.com/ . How it can be achieved 
with real url.

2) The site is localizad in six languages and default language is spanish.
     But by default it opens english language whereas it should go to 
spanish language. I mean to say 'en'  URL path segment is added whereas 
it should be 'es' (keyword for spanish).

I tried many settings for real URL and language settings but no results. 
If somebody has some idea plz guide me.

Atul