[TYPO3] How to create menu with page titles as id?

[Bartosz Aninowski]

> I would like to make a menu that use the Page Titles from the backend as
> li id´s in the menu like this:

Take a look at this 
http://typo3.org/documentation/document-library/references/doc_core_tsref/4.0.0/view/10/8/
subst_elementUid
If set, all appearances of the string '{elementUid}' in the total element 
html-code (after wrapped in .allWrap} is substituted with the uid number of 
the menu item.