From The Mana World

This template creates a clickable button. There is only one unnamed parameter. It is used to create the text of the button. It can support wikilinks.

Examples:

{{Clickable button|This is a button}}

produces

{{Clickable button|[[Sandbox]]}}

produces [[Sandbox|]]

If a browser does not have JavaScript enabled then no button is displayed but the text will still be displayed. Copied from wikiversity.