Forum:"None selected" in upload form should pull up a template

I created a variation of this template: No license a long time ago for the upload form at the Cannabis Wiki:
 * http://cannabis.wikia.com/wiki/Special:Upload

Why isn't it called up when an image is uploaded, and an image license is not selected?

See:
 * http://cannabis.wikia.com/wiki/MediaWiki:Licenses - text of license selector.
 * http://cannabis.wikia.com/wiki/Template:No_license
 * http://cannabis.wikia.com/wiki/Template:None_selected
 * http://cannabis.wikia.com/wiki/Category:Image_license_templates
 * http://cannabis.wikia.com/wiki/MediaWiki:Uploadtext - text of upload form.

Feel free to upload any image to test things. I can delete them later. --Timeshifter 19:24, March 30, 2011 (UTC)
 * I've messed around with that in several wikis, including wikis in other wiki farms, and it never worked and no one has ever come up with something that worked.
 * Maybe it will work with javascript and/or magic, not with templates.
 * Maybe it will work with javascript and/or magic, not with templates.


 * Gonna need magic. JS can't change pages you aren't looking at. You can do it with PHP, but that's a Wikia thing, and not something we can fix.


 * Is it possible to prevent people from uploading unless they pick a license? I think Wikimedia Commons does that if some parts of the upload form are not filled in with something. --Timeshifter 21:36, March 31, 2011 (UTC)


 * It is theoretically possible to do with JS, yes. But it'd probably be classed as a ToU violation.


 * I don't think so. Each wiki has a lot of leeway in the image license templates they use, and the rules they set up for what images are allowed on the wiki. I created/adapted most of the image license templates on the Cannabis Wiki, for example. Also, I wrote the how-to pages. --Timeshifter 21:59, March 31, 2011 (UTC)
 * No, it's preventing people from uploading unless they select a license that would violate the ToU. The templates themselves are fine.
 * Each wiki decides what images it allows. Therefore stopping uploads without licenses is part of that, and does not violate TOU as far as I know. --Timeshifter 22:26, March 31, 2011 (UTC)
 * As it says in the ToU: "Not intentionally block, remove, or otherwise obstruct the proper functioning and view of advertisements, and/or user interface and functionality by other users". Knowing Wikia, preventing people from uploading unlicensed images will fall under that category.