the Pear::DB way to do mysql_insert_id?

What is the proper PEAR way to get the value that mysql_insert_id() gives you when using an auto_increment index. I'm assuming that the function isn't implemented that way because other databases don't do sequences the same way. I looked through the nextId() function and it uses another table to keep the sequence. Could somebody explain the way this should be implemented with mysql? -- Jeff Bearer, RHCE Webmaster, PittsburghLIVE.com Winner 2002 Eppy Award, Best U.S. Newspaper Website