Thread:Project:Support desk/I need help writing JavaScript to create a new tab

I need to have a new tab on a wiki that we're developing as a historical counterpart to Wikipedia. (More reliability) The tab is for a draft version of the article, similar to the talk page tab. Wiktionary has a similar setup here for a citation page. If there is anyone with the experience to set that up, your help would be greatly appreciated. I can mention you on the about page as a contributor, since this is a major part of the wiki.