When putting more inputboxes on page, it becomes invalid since all of them have same id="createbox". Also styling an scripting is very limited then.
http://www.mediawiki.org/wiki/Extension:Inputbox is nice example.
Suggestion: id attribute is handy, so new parameter id within <inputbox> tag would be the best solution. When id not present, no id attribute will be rendered in XHTML output.
Version: unspecified
Severity: minor
URL: http://www.mediawiki.org/wiki/Extension:Inputbox