didn't mean to completely remove the CI superobject from get_cookie...
diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php
index 77f86e4..8d892a5 100644
--- a/system/helpers/cookie_helper.php
+++ b/system/helpers/cookie_helper.php
@@ -107,6 +107,8 @@
 {
 	function get_cookie($index = '', $xss_clean = FALSE)
 	{
+		$CI =& get_instance();
+		
 		$prefix = '';
 		
 		if ( ! isset($_COOKIE[$index]) && config_item('cookie_prefix') != '')