Template:LoadPage
The LoadPage template creates a placeholder for unloaded content, and a link to load the content. Use the LoadPage template to split articles into multiple pieces to be loaded into a primary article as needed. The JS used to do this is located in MediaWiki:Gadget-site.js.
Usage
{{LoadPage|<page>|<title>|<element>}}
The <page> parameter specifies the page title (including namespace) of the content to be loaded when requested (for example, Namespace:Article/subpage).
The optional <title> parameter specifies the text to be displayed as placeholder (if omitted or empty, defaults to <page>).
The optional <element> parameter specifies the HTML element name to be applied to the placeholder text (if omitted, defaults to h2).
The optional transcluded parameter specifies that the page is already transcluded, and should be shown directly (minus self-links). This is intended for performance, as the transclusion is cached, however features like <noinclude> on the page won't work, and features like {{PAGENAME}} will use the original page's name, rather than the current pages name. Only self-links are manually resolved (however existing self-links will also remain).