The <t:submit> element displays a submit button if included in a form element. If no label attribute is provided, ``submit'' or a translation is used as default label. The next page to be displayed can be determined by the followup attribute. No followup is interpreted as followup="stay", or, if the current template is a comma separated list, the remainter of the list is fills a followup="goto-template:..." command
The <t:submit> element must not have any child elements.