Try to help me plz

Hello everyone
Actually i m developing a website in jsp. the problem is with drop down menu and combo box.
suppose there is a combo box below the menu bar.
the problem appears when i point to a menu item. drop down menu appears but when it occurs over combo box the area in which combo box lies drop down menu item becomes disappeared and combo box text become visible.
i.e. what i want is- the menu list should be clearly visible not combobox text.
I dont understand how to over come this
if u have any suggestion plz let me know
everybody's suggestions are welcome
thanku

This sounds like an HTML question, you should ask the question in a forum more specialised in HTML.

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A question about transparent gateway,sb help me plz!!

hi all:
i met a problem while trying the transparent gateway for ibm drda
1.i have the listner.ora configured like this:
=================================================================
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = felix)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = tg4drda)
(SID_NAME = TEST)
(ORACLE_HOME = E:\oracle\oradrda)
=================================================================
2.and the tnsnames.ora configured like this:
=================================================================
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.18.10.11)(PORT = 1521))
(CONNECT_DATA =
(SID = TEST)
(SERVER = DEDICATED)
(HS = ok)
(HS = OK)
=================================================================
3.and the initTEST.ora configured like this:
=================================================================
set DRDA_CONNECT_PARM=localhost:446
DRDA_REMOTE_DB_NAME=test (database name of db2)
=================================================================
then i log on as user system and create a database link dblink1.But when i try the sql statment "select * from t1@dblink1"
such error came up:
# ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
#ORA-02063:preceding 2 lines from dblink1
somebody help me plz,tell me how to deal with such a problem,thanks a lot!!!
Best regards!

Hi Felix,
Please take a look at note 234517.1 on metalink (copied below).
This note explains how to resolve the following error messages when using Transparent Gateways or Generic Connectivity:
ORA-3113; ORA-2019; ORA-2085; ORA-12154; ORA-28545; ORA-28546; ORA-28509; ORA-942; ORA-904; ORA-28500;ORA-28528
SCOPE & APPLICATION
This note should help to solve common error messages when using generic
connectivity or gateways.
Common errors with gateways or generic connectivity
Here are the English descriptions of each error; to compare your message
with the message below, you can alter your current SQL*Plus session
and compare your message with the messages listed in this note:
alter session set nls_language=american;
ORA-3113:
SQL> connect system/manager@tg4msql;
ERROR:
ORA-03113: end-of-file on communication channel
Resolution:
You can't connect with SQL*Plus directly to the foreign
data store. HS or Gateways are only designed to work with
a database link from an Oracle database to the foreign
data store
ORA-2019:
SQL> select * from all_catalog@demo;
select * from all_catalog@demo
ERROR at line 1:
ORA-02019: connection description for remote database not found
Resolution:
Create a database link to connect to the foreign database
create [public] database link <db link name>
connect to <user of the foreign datastore>
identified by <password of this user>
using '<SQL*Net ALIAS>';
For case sensitive usernames/passwords of foreign databases,
surround the user and password with double quotes.
create [public] database link <db link name>
connect to "<user of the foreign datastore>"
identified by "<password of this user>"
using '<SQL*Net ALIAS>';
ORA-2085:
SQL> select * from all_catalog@tg4msql_v91;
select * from all_catalog@tg4msql_v91
ERROR at line 1:
ORA-02085: database link TG4MSQL_V91.DE.ORACLE.COM
connects to HO.WORLD
Resolution:
This problem is related to GLOBAL NAMES.
The simplest way to disable global naming is to alter
the current session.
alter session set global_names=false;
The other solution is to add a global_name to the
gateway/hs:
HS_DB_NAME = <datasource>
HS_DB_DOMAIN = <DOMAIN>
But the HS_DB_NAME must not exceed 8 characters and
must not contain any extra characters. If this is not
possible, the globale naming can be disabled by setting
GLOBAL_NAMES = FALSE in the init.ora of the database
as well
ORA-12154:
SQL> select * from all_catalog@demo;
select * from all_catalog@demo
ERROR at line 1:
ORA-12154: TNS:could not resolve service name
Resolution:
The database link uses a SQL*Net alias not specified
in the TNSNAMES.ORA of the database server.
Query the data dictionary to figure out the 'HOST'
specified for the database link:
select db_link, host from user_db_links;
or
select db_link, host from dba_db_links;
The 'HOST' value is the alias of the SQL*Net.
Please make sure it exists in the TNSNAMES.ORA file
present at the Oracle database server.
ORA-28545:
SQL> select * from all_catalog@demo;
select * from all_catalog@demo
ERROR at line 1:
ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
ORA-02063: preceding 2 lines from DEMO
Resolution:
There's something wrong with the SQL*Net connection:
- checking the SQL*Net -> Listener configuration with TNSPING:
tnsping <SQL*Net alias>
TNS-12545: Connect failed because target host or object
does not exist
The HOSTNAME specified in the TNSNAMES.ORA is invalid
Try with the OS ping to resolve the hostname / IP adddress
TNS-12541: TNS:no listener
The hostname specified in the listener.ora points to a
machine without an Oracle listener, the listener on that
machine is not running or the port number is wrong.
NO ERROR with TNSPING:
This might be caused by an invalid SID configuration.
Please make sure, that the SID in the listener refelects the
SID specified in the TNSNAMES.ORA. Make sure you don't mix
SID syntax with SERVICE_NAME syntax.
If everything is configured well, please make sure that
lsnrctl status shows at least one service handler for
hsodbc. Probably restart the listener AFTER changing
the listener.ora file.
Still no error found, then please enable listener tracing
(level support) and have a look at the listener.trace file
after retrying the same select statement again.
In the file you should see the connect from the Oracle
database to the listener. After a few lines you should see that
the listener tries to open 2 pipes. Does this work or does it
fail and again a few lines later you see a hex/ascii block that
conatins an error stack like:
ERR=12500, CODE=12500, EMFI=4, CODE=12560, EMFI=4?
Then please check again the listener.ora file; is the
ORACLE_HOME directory specified within the listener.ora file
correct? Or if you are using environment variables in the
listener.ora please replace them with absolute paths.
ORA-28546
CAUSE 1:
SQL> select * from all_catalog@demo;
ERROR at line 1:
ORA-28546: connection initialization failed, probable Net8 admin error
ORA-02068: following severe error from DEMO
ORA-03113: end-of-file on communication channel
Resolution:
This error might be caused by a misplaced 'HS=' or 'HS=OK' key
word in the tnsnames.ora.
Make sure HS= or HS=OK is present and that the SID Connect String
looks like:
(CONNECT_DATA =
(SID = tg4msql)) <= there are 2 closing brackets! The HS
(HS=)) <= key word is OUTSIDE of connect_data
CAUSE 2:
SQL> select * from all_catalog@test;
ora-28546: connection initialization failed, probable net8 admin error
ora-29511 lost rpc connection to heterogeneous remote agent SID ...
ora-02063 preceding 2 lines from test
Resolution:
This behaviour can be found in situations with a version missmatch.
For example the Oracle database is release 9.2.0.4 and the gateway
itself 9.2.0.1
=> The fix is to apply the same database patchset (gateway patches
are part of the database patchsets) to the gateway home as well;
or if the gateway 9.2.0.1 was installed into a 9.2.0.4 database
directory to reapply the database patchset.
ORA-28509:
Older gateways report this error instead of giving a
deltailed error description.
Resolution:
This error indicates the same as the errors described above.
They can be solved by checking the SQL*Net configuration
for the gateway / generic connectivity setup.
ORA-942:
SQL> select irgendwas from demo@demo;
select irgendwas from demo@demo
ERROR at line 1:
ORA-00942: table or view does not exist
...(the text here depends on the library/odbc...
ORA-02063: preceding 2 lines from DEMO
Resolution:
make sure the table exists in the foreign data store.
Pay attention that some foreign data stores are case
sensitive and thus the table_name must be surrounded
by double quotes.
ORA-904:
SQL> select irgendwas from "demo"@demo;
select irgendwas from demo@demo
ERROR at line 1:
ORA-00904: "IRGENDWAS": invalid identifier
Resolution:
Make sure the column name specified exists at the foreign
table and if it is case sensitive, surround it by double quotes.
ORA-28500:
CAUSE 1:
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned
this message:
[Generic Connectivity Using ODBC][H006] The init parameter
<HS_FDS_CONNECT_INFO> is not set. Please set it in init<orasid>.ora
file.
ORA-02063: preceding 2 lines from HSODBC
Resolution:
The connect information to the remote database or the ODBC DSN is not
found. Add the proper connect string required by the gateway or hs/
generic connectivity agent.
CAUSE 2:
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
ORA-28541: Error in HS init file on line 11.
ORA-02063: preceding 2 lines from HSODBC
Resolution:
The init.ora of the gateway / generic connectivity contains an
invalid parameter in line 11
CAUSE 3:
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Generic Connectivity Using ODBC]DRV_InitTdp: errors.h (2005): ;
[Microsoft][ODBC SQL Server Driver][SQL Server]Error authenticating user
'sa'. (SQL State: 00000; SQL Code: 18456)
ORA-02063: preceding 2 lines from HSODBC
Resolution:
The username password for the database link is wrong or no connect
information was specified.
Make sure that for case sensitive usernames/passwords the create
database link statement contains the double quotes for the
username/passwords.
Further make sure you specified a username and password. OS
Authentication is currently not supported by most of the
gateways of by generic connectivity.
CAUSE 4:
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned
this message:
[Generic Connectivity Using ODBC]DRV_InitTdp: errors.h (2005): ;
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]SQL Server does
not exist or access denied.[Microsoft][ODBC SQL Server Driver]
[TCP/IP Sockets]ConnectionOpen (Connect()).
(SQL State: 00000; SQL Code: 10061)
ORA-02063: preceding 2 lines from HSODBC
Resolution:
Make sure the foreign database is up and running on the configured
machine.
ORA-28528:
SQL> select * from DecimalType@hsodbc;
ERROR:
ORA-28528: Heterogeneous Services datatype
conversion error
Resolution:
The language of the foreign data store (remote database)
does not match with your Oracle database settings.
Starting with 9.2.0.l4 this error might occure for example '
if numeric values will be truncated.
Adapt in the Gateway/Generic Connectivity initialisation file
the parameter HS_LANGUAGE.
HS_LANGUAGE must be set to the LANGUAGE used in the FOREIGN
database.
as a play with 2 settings and check out which one works:
1. Try:
HS_LANGUAGE=AMERICAN_AMERICA.WE8ISO8859P1
Do you still get the error? Yes, proceed with the second try:
2. Try:
HS_LANGUAGE=GERMAN_GERMANY.WE8ISO8859P1
(or to any other territory that uses a komma as decimal separator)
ORA-24274:
SQL> select * from all_catalog@<db_link>;
select * from all_catalog@<db_link>
ERROR at line 1:
ORA-28522: error initializing heterogeneous capabilities
ORA-28522: error initializing heterogeneous capabilities
ORA-28559: FDS_CLASS_NAME is <GTW>9.2.0.5.0_128, FDS_INST_NAME is <link>
ORA-02063: preceding 3 lines from %s
ORA-00604: error occurred at recursive SQL level 1
ORA-24274: no row exists in the HS$_BASE_CAPS table for these parameters
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
ORA-06512: at "SYS.DBMS_HS_UTL", line 431
ORA-06512: at "SYS.DBMS_HS_CHK", line 51
ORA-06512: at "SYS.DBMS_HS_UTL", line 48
ORA-06512: at "SYS.DBMS_HS", line 38
ORA-06512: at line 1
Resolution:
This special combination of errors might occure after applying
the Oracle database and gateway patchset 9.2.0.5 WITHOUT
running catpatch (=the upgrade script of the database).
=> Please run catpatch. If it ran successfully but connectivity
still fails you may run
cathnohs.sql and caths.sql to recreate the HS data
dictionary tables. BUT BE CAREFUL: Running CATHNOHS drops ALL
gateway/generic connectivity related database links!
Hope this helps,
Mark.

A question about transparent gateway,somebody help me plz!!

hi all:
i met a problem while trying the transparent gateway for ibm drda
1.i have the listner.ora configured like this:
=================================================================
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = felix)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = tg4drda)
(SID_NAME = TEST)
(ORACLE_HOME = E:\oracle\oradrda)
=================================================================
2.and the tnsnames.ora configured like this:
=================================================================
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.18.10.11)(PORT = 1521))
(CONNECT_DATA =
(SID = TEST)
(SERVER = DEDICATED)
(HS = ok)
(HS = OK)
=================================================================
3.and the initTEST.ora configured like this:
=================================================================
set DRDA_CONNECT_PARM=localhost:446
DRDA_REMOTE_DB_NAME=test (database name of db2)
=================================================================
then i log on as user system and create a database link dblink1.But when i try the sql statment "select * from t1@dblink1"
such error came up:
# ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
#ORA-02063:preceding 2 lines from dblink1
somebody help me plz,tell me how to deal with such a problem,thanks a lot!!!
Best regards!

I strongly recommend you to read the following metalink note. Note:234517.1
ORA-28545:
SQL> select * from all_catalog@demo;
select * from all_catalog@demo *
ERROR at line 1:
ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
ORA-02063: preceding 2 lines from DEMO
Resolution:
There's something wrong with the SQL*Net :
- checking the SQL*Net -> Listener configuration with TNSPING: tnsping <SQL*Net alias>

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