luci/modules/luci-base/luasrc/view/cbi/header.htm

<%+header%>
<form method="post" name="cbi" action="<%=REQUEST_URI%>" enctype="multipart/form-data" onreset="return cbi_validate_reset(this)" onsubmit="return cbi_validate_form(this, '<%:Some fields are invalid, cannot save values!%>')">
	<div>
		<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
		<input type="hidden" name="cbi.submit" value="1" />
		<input type="submit" value="<%:Save%>" class="hidden" />
	</div>