fixed param options on cookie helper function definitions
diff --git a/user_guide_src/source/helpers/cookie_helper.rst b/user_guide_src/source/helpers/cookie_helper.rst
index 41a6d1c..e70893f 100644
--- a/user_guide_src/source/helpers/cookie_helper.rst
+++ b/user_guide_src/source/helpers/cookie_helper.rst
@@ -25,7 +25,7 @@
The following functions are available:
-.. function:: set_cookie($name = ''[, $value = ''[, $expire = ''[, $domain = ''[, $path = '/'[, $prefix = ''[, $secure = FALSE[, $httponly = FALSE]]]]]]])
+.. function:: set_cookie([$name = ''[, $value = ''[, $expire = ''[, $domain = ''[, $path = '/'[, $prefix = ''[, $secure = FALSE[, $httponly = FALSE]]]]]]]])
:param mixed $name: Cookie name *or* associative array of all of
the parameters available to this function
@@ -44,7 +44,7 @@
``CI_Input::set_cookie()``.
-.. function:: get_cookie($index = '', $xss_clean = FALSE)
+.. function:: get_cookie([$index = ''[, $xss_clean = FALSE]])
:param string $index: Cookie name
:param bool $xss_clean: Whether to apply XSS filtering to the returned value
@@ -55,7 +55,7 @@
description of its use, as this function is an alias for ``CI_Input::cookie()``.
-.. function:: delete_cookie($name = '', $domain = '', $path = '/', $prefix = '')
+.. function:: delete_cookie([$name = ''[, $domain = ''[, $path = '/'[, $prefix = '']]]])
:param string $name: Cookie name
:param string $domain: Cookie domain (usually: .yourdomain.com)