how do I get the subdirectory that a page is being pulled from. say I have three sites running the same script and I need to determine which site is which. http://www.domain.com/subdir1 http://www.domain.com/subdir2 http://www.domain.com/subdir3 and subdir1, subdir2 and subdir3 all need different header and different db and so on. how would i get that I am in site subdir3 and not in subdir1?