Support Forums - Need to make path to Libs folder&Path to java

Sorry, About asking for help here without helping other. I will help others, But I get some error in posting to SF, If this works, Imma gonna be posting many stuff.
I have made a batch file to run a script from a jar file.
which is

Code:
java -jar  Data\my script launcher.jar Data\my script

But to run the script the script
- need to have
1.) path to Libs folder and
2.) path-to-java\jre6\bin in system path (%PATH%)

I am super noob in Batch file. Please tell me how do I set these path, to run the script properly.
I know the path command is

Code:
PATH=%PATH%;C:\Program Files\Java\jre6\bin

Also I have downloaded A batch file which automatically finds the path to java. But the thing Is I can't get it work

Code:
@ECHO OFF

ECHO Looking for JDK

SET KEY_NAME=HKLM\SOFTWARE\JavaSoft\Java Development Kit

FOR /F "tokens=3" %%A IN ('REG QUERY "%KEY_NAME%" /v CurrentVersion 2^>NUL') DO SET jdkv=%%A

SET jdk=

IF DEFINED jdkv (

    FOR /F "skip=2 tokens=2*" %%A IN ('REG QUERY "%KEY_NAME%\%jdkv%" /v JavaHome 2^>NUL') DO SET jdk=%%B

) ELSE (

    FOR /F "tokens=*" %%G IN ('DIR /B "%ProgramFiles%\Java\jdk*"') DO SET jdk=%%G

)

SET jdk=%jdk%\bin

SET javac="%jdk%\javac.exe"

IF NOT EXIST %javac% (

    javac -version 2>NUL

    IF "%ERRORLEVEL%" NEQ "0" GOTO :notfound

) ELSE (

    GOTO :setpath

)

GOTO :eof

:notfound

ECHO JDK is not installed, please download and install it from:

ECHO http://java.sun.com/javase/downloads

ECHO.

:setpath

SET PATH=%jdk%;%PATH%

GOTO :eof

java -jar  Data\my script launcher.jar Data\my script

Please help me to find a way so i can run the script?
Thank you.
[HF Username:- rokrvaibhav]