iRule for uri rewrite only for selected uri paths and keep the same url for all other cases

[root@ve10:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.252:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve10:Active] config  b pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve10:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   switch [string tolower [HTTP::uri]] {
      "/abc" { HTTP::uri "/hij" }
      "/def" { HTTP::uri "/klm" }
   }
}
}

 /abc

[root@ve10:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.251(50703) <-> 172.28.19.252(80)
1366693438.9012 (0.0010)  C>S
---------------------------------------------------------------
GET /abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Accept: */*
Host: domain.com

---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(50703) <-> 200.200.200.101(80)
1366693438.9033 (0.0018)  C>S
---------------------------------------------------------------
GET /hij HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Accept: */*
Host: domain.com

---------------------------------------------------------------

 /something else

[root@ve10:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.251(50704) <-> 172.28.19.252(80)
1366693465.1440 (0.0009)  C>S
---------------------------------------------------------------
GET /somethingelse HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Accept: */*
Host: domain.com

---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(50704) <-> 200.200.200.101(80)
1366693465.1451 (0.0010)  C>S
---------------------------------------------------------------
GET /somethingelse HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Accept: */*
Host: domain.com

---------------------------------------------------------------