I have problems in joomla rewrite the url when I'm in another menu that is not the main menu.

examples:

Example 1:
Returns: http://www.xxx.pt/a-minha-area/index.php
Should give: http://www.xxx.pt

Example 2:
Returns: http://www.xxx.pt/a-minha-area/anuncios/index.php?option=com_listbingo&t ......
It should run: http://www.xxx.pt/index.php?option=com_listbingo&t ......
Should give: http://www.xxx.pt/a-minha-area/anuncios/myads

Any Solution to fix this?