[jQuery] [treeview] newbie

[macsig]

Hello, I have just downloaded the treeview plugin and it looks like
fine

var $j = jQuery.noConflict();
$j(document).ready(function(){
    $j("#example").treeview();
  });

but when I try to load the tree with some options


var $j = jQuery.noConflict();
$j(document).ready(function(){
    $j("#example").treeview(
                collapsed: true
        );
  });

I have the error below:

missing ) after argument list
[Break on this error] collapsed: true\n

but I don't see any missing )

Where am I wrong ???

Moreover. is there a option list available somewhere online ?

THANKS