Form inside a form, is that alright?

Though you can have several <form> elements in one HTML page, you cannot nest them.

Form nesting can be achieved with new HTML5 input element's form attribute. Although we don't nest forms structurally, inputs are evaluated as they are in their own form. In my tests, 3 major browsers support this except IE(IE11). Form nesting limitation was a big obstacle for HTML UI design.

Here is a sample code, when you click Save button you should see "2 3 success" (Original http://www.impressivewebs.com/html5-form-attribute/):

<form id="saveForm" action="/post/dispatch/save" method="post"></form>
<form id="deleteForm" action="/post/dispatch/delete" method="post"></form>

<div id="toolbar">
    <input type="text" name="foo" form="saveForm" />
    <input type="hidden" value="some_id" form="deleteForm" />
    <input type="text" name="foo2" id="foo2" form="saveForm" value="success" />

    <input type="submit" name="save" value="Save" form="saveForm" onclick="alert(document.getElementById('deleteForm').elements.length + ' ' + document.getElementById('saveForm').elements.length + ' ' + document.getElementById('saveForm').elements['foo2'].value);return false;" />
    <input type="submit" name="delete" value="Delete" form="deleteForm" />
    <a href="/home/index">Cancel</a>
</div>