Grab the URL better way

Hi jerdiggity,

The property 'path' is only set in those sites where module Path is enabled.
So if you don't have a node with path.. it will show this error message:
Notice: Undefined property: stdClass::$uri in fblikebutton_node_view() (line 58 of
Instead of :
$likepath = drupal_get_path_alias($node->uri['path']);.
It's better to let Drupal decide the path like this:
$likepath = url("node/$node->nid", array('absolute' => TRUE)),.