CSS_THEME, 'browsers' => array('IE' => 'IE 8', '!IE' => FALSE), 'preprocess' => FALSE)); drupal_add_css(path_to_theme() . '/css/ie7.css', array('group' => CSS_THEME, 'browsers' => array('IE' => 'IE 7', '!IE' => FALSE), 'preprocess' => FALSE)); drupal_add_css(path_to_theme() . '/css/ie6.css', array('group' => CSS_THEME, 'browsers' => array('IE' => 'IE 6', '!IE' => FALSE), 'preprocess' => FALSE));