Northern Michigan University's mathematics and computer science department will host a presentation titled "Evolving JavaScript" at 4 p.m. Tuesday, March 25, in Mead Auditorium in the West Science Building. Allen Wirfs-Brock, a research fellow for Mozilla Corp., will be the featured speaker. He was project editor for ECMA-262, the internal standard that defines the JavaScript programming language. This event is free and open to the public.