I need to implement a tag or category selector in an HTML page.The tags need to be supplied to the user, and they should not be allowed to enter an arbitrary tag.jQuery UI supply a very popular auto-complete implementation, but it appears to allow selection of arbitrary tags.In the screenshot below, I've been allowed to select \[code\]"j"\[/code\] and \[code\]"javascript"\[/code\] without any special effort.Are there any techniques, implementations, or 3rd party tools I can use to not allow the user to enter arbitrary tags?Edit: My web application runs using PHP, jQuery, jQuery-UI, MySQL, and the usual front-end tools.
