[TYPO3-ttnews] List menu as a combobox

[Typo3_news]

Hi everybody, I'm trying to display the List mode of my tt_news as a 
combobox. I've changed the List template and I've put all the titles of my 
tt_news in the combobox,

[...]
<option value="">###NEWS_TITLE###<option>
[...]

but now I need to put the url of the Single view as the Value of the 
combobox's option and I don't know how to do that. Can anybody help me? 
thanks