how to use foreach

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_RESPONSE {
        foreach cjjcookie [HTTP::cookie names] {
                if {[class match -- $cjjcookie equals unsecure_cookie]} {
                         Do nothing.
                } else {
                        HTTP::cookie secure $cjjcookie enable
                }
        }
 }
}
[root@ve1023:Active] config  b class unsecure_cookie list
class unsecure_cookie {
   {
      "cookie1"
      "cookie2"
      "cookie3"
      "cookie4"
   }
}

[root@ve1023:Active] config  curl -I http://200.200.200.101
HTTP/1.1 200 OK
Date: Wed, 21 Dec 2011 07:18:11 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT
ETag: "4183e4-3e-9c564780"
Accept-Ranges: bytes
Content-Length: 62
Set-Cookie: cookie1=1111; path=/
Set-Cookie: cookie2=2222; path=/
Set-Cookie: cookie3=3333; path=/
Set-Cookie: cookie4=4444; path=/
Set-Cookie: cookie5=5555; path=/
Connection: close
Content-Type: text/html; charset=UTF-8

[root@ve1023:Active] config  curl -I http://172.28.19.79
HTTP/1.1 200 OK
Date: Wed, 21 Dec 2011 07:18:17 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT
ETag: "4183e4-3e-9c564780"
Accept-Ranges: bytes
Content-Length: 62
Set-Cookie: cookie1=1111; path=/
Set-Cookie: cookie2=2222; path=/
Set-Cookie: cookie3=3333; path=/
Set-Cookie: cookie4=4444; path=/
Set-Cookie: cookie5=5555;secure; path=/
Connection: close
Content-Type: text/html; charset=UTF-8