Accepts the current layer when the link is clicked.
The JSON value of the [up-accept]
attribute becomes the overlay's
acceptance value.
<a href='/users/5' up-accept='{ "id": 5 }'>Choose user #5</a>
The link's [href]
will only be followed when this link is clicked in the root layer.
In an overlay the click
event's default action is prevented.
You can also omit the [href]
attribute to make a link that only works in overlays.
The overlay's acceptance value as a JSON string.
A message the user needs to confirm before the layer is closed.
The close animation's duration in milliseconds.
The close animation's easing function.