where is the source is nl2br()?

hi, i know the subject of changing the source code for the community at large is a touchy one, so i want to start off by saying that i want to make this change for our php implementation for use on our site. so, with that said, i would like to modify the nl2br() function so that it is xhtml 1.0 compliant. can anyone tell me where in the code i can find this function? many thanks in advance. -lucas ------------------------ Lucas Rockwell lr@socrates.berkeley.edu