Translate

To switch from an English page to its German subpage, you can use the following template.

{{#if: {{{1|}}}| {{DISPLAYTITLE:{{{1}}} }} |}}
<div>
{{#switch: {{SUBPAGENAME}}
|de=[[File:De-active.png|link=]] [[File:En.png|link={{NAMESPACE}}:{{BASEPAGENAME}}]]
|[[File:De.png|link={{ARTICLEPAGENAME}}/de]] [[File:En-active.png|link=]]
}}
</div>
<br /><br />

On the English main page and the German sub page, include the template reference with the main page name in source editing mode at the top of the pages:

{{Translate|Pagename_here}}

The page switch then inserts the switch using the language flags:

UserManual:De:Vorlagen/Beispiel/Translate