- * @param integer $abook_sort_order current sort value
- * @param string $alt_tag alt tag value (string visible to text only browsers)
- * @param integer $Down sort value when list is sorted ascending
- * @param integer $Up sort value when list is sorted descending
+ * @param integer $abook_sort_order Current sort value
+ * @param string $alt_tag The alt tag value (string
+ * visible to text only browsers)
+ * @param integer $Down Sort value when list is sorted
+ * ascending
+ * @param integer $Up Sort value when list is sorted
+ * descending
+ * @param array $uri_extra Any additional parameters to add
+ * to the button's link, as an
+ * associative array of key/value pairs
+ * (OPTIONAL; default none)
+ *