## the table container is a draggable instance. 

## doesn't work

<%= link_to_function "Fermer","close(event)" %>

produce the html : 
<a onclick="close(event); return false;" href="#">Fermer</a>

function close(event){
  Event.stop(event);
  elt=Event.element(event);
  elt.up('table.card').remove();
}

## works

<%= link_to_function "Fermer", "Event.stop(event);$(this).up('table.card').hide()" %>

produce the html 
<a onclick="Event.stop(event);$(this).up('table.card').hide(); return false;" href="#">Fermer</a>