Something

function dbtuning_analyze() {   if ($edit = $_POST['edit']['apply_changes']) {	dbtuning_empty_changes($_POST['edit']['apply_changes']['settings']);  	dbtuning_analyze_submit();  }    else {      dbtuning_analyze_submit();    }		$form['re_analyze_db'] = array(	  '#type' => 'submit', 	  '#value' => t('Re-Analyze'));	$form['apply_changes'] = array(	  '#type' => 'submit',	  '#value' => t('Apply Changes'));	 	$output = drupal_get_form('dbtuning_actions', $form);   	return $output;}