Example of how to use SugarLogic to SetPanelVisibility (ie toggle a panel on and off) http://developers.sugarcrm.com/wordpress/2011/06/13/learning-sugar-logic-using-custom-dependencies/

panel_visibility_dep.php

<?php
$dependencies['Cases']['panel_visibility'] = array(
	'hooks' => array("edit"),
	'trigger' => 'equal($status, "Closed")', //Optional, the trigger for the dependency. Defaults to 'true'.
	'triggerFields' => array('status'),
	'onload' => true,
	//Actions is a list of actions to fire when the trigger is true
	'actions' => array(
		array(
			'name' => 'SetPanelVisibility',
			'params' => array(
				'target' => 'detailpanel_2', // <-- get this by doing inspect element on the page, they're sequential though so can probably guess it.
				'value' => 'true',
			),
		)
	),
	'notActions' => array(
		array(
			'name' => 'SetPanelVisibility',
			'params' => array(
				'target' => 'detailpanel_2',
				'value' => 'false',
			),
		),
	),
);

Just a note that if you want the visibility to work on detail view then you add an item to the hooks array titled "view". I had thought it was detail, but was wrong. Thanks for the gist blake!