MediaWiki:LastPage.js

Note: After saving, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Internet Explorer: Hold Ctrl while clicking Refresh, or press Ctrl-F5
• Opera: Go to Menu → Settings (Opera → Preferences on a Mac) and then to Privacy & security → Clear browsing data → Cached images and files.

function iniFrame() { 
	if ( window.location !== window.parent.location ) 
	{ 
		var output;
		window.element = document.getElementById("globalWrapper");
		var save = window.element.innerHTML;
		output = '<button class="LastPage" onclick="var oldURL = document.referrer; window.location.href = oldURL;"><b>Return to Last Page</b></button>'
		window.element.innerHTML = save + output;
	}
}
iniFrame();