You can trigger removing and inserting parts of your HTML page using the
data-if="" attribute. Use this attribute to expand and collapse things.
data-if takes an XPath query. If that query returns false, the element will be removed.
It can be used to show an element only if a user is logged in for example.
<div data-if="$logged-in"> <p>Hi, welcome back!</p> </div> <div data-if="not($logged-in)"> <form action="login"> ... a login form </form> </div>
Frameless.variable("$logged-in", false) (from your developer console) would hide the element, then executing
Frameless.variable("$logged-in", true) would make it re-appear.