/**
* Load icon vars used in hide and show links.
*/
public static function setIcons()
{
if (!isset(self::$_showIcon)) {
$config = CRM_Core_Config::singleton();
self::$_showIcon = '<img src="' . $config->resourceBase . 'i/TreePlus.gif" class="action-icon" alt="' . ts('show field or section') . '"/>';
self::$_hideIcon = '<img src="' . $config->resourceBase . 'i/TreeMinus.gif" class="action-icon" alt="' . ts('hide field or section') . '"/>';
}
}
