Something

	$form['bottom_buttons']['#prefix'] = '<span class=goodmail_inbox_bottom>';
	$form['bottom_buttons']['#suffix'] = '</span>';
	
	//$form['bottom_buttons']['#tree'] = TRUE;
		
	$form['bottom_buttons']['folders'] = array(
		'#type' => 'select',
		'#name' => 'folder',
		'#default_value' => '',
		'#options' => $folders
	);
	

	
	$form['bottom_buttons']['show'] = array(
		'#type' => 'submit',
		'#value' => 'Show'
	);	
	
	$form['bottom_buttons']['move'] = array(
		'#type' => 'submit',
		'#value' => 'Move'
	);