Jane, Вот я и про это же , он просто скопипастил + копиры автора удалил !!!
// Create an array of known mobile user agents
// This list is from the 21 October 2010 WURFL File.
// Most mobile devices send a pretty standard string that can be covered by
// one of these. I believe I have found all the agents (as of the date above)
// that do not and have included them below. If you use this function, you
// should periodically check your list against the WURFL file, available at:
// http://wurfl.sourceforge.net/