hello, this is my change log of project, I'll keep you updated every change I made ;)

Just for your information, You do not need to upload any sql file (if there is a .sql file in the folder) to your server, you have to do is create a database with any name you want, and you have to customize your server information in the file backend_config.php, tables will be created automatically by the code that I have made , each time you access the web, it will automatically check on whether the table is available or not, if not then automatically create the required tables.

Change #1 - 24 February 2015
# uploaded first code
  + Created
  	- image 
  	- js 
  	  => jquery.js 
  	  => main.js 
  	- style 
  	  => main.css 
  	=> backend_config.php 
  	=> change_log.txt 
  	=> process_registration.php
  	=> registration.php 

P.S. I'll save all change folder to my local computer, I can upload it by your request ;)
P.S.S. Table created "accountant" with column 
       + id (int,11,AI,Primary)
       + first_name (varchar,50)
       + last_name (varchar,50)
       + email (varchar,150)
       + password (text)

Change #2 - 24 February 2015
# Change name
  + registration.php to accountant_registration.php
  + process_registration.php to process_accountant_registration.php

  validation when accountant do a registration from accountant_registration.php already done then when all done (have no error on validation) will be redirect to accountant_login.php

  validation detail 
  - first name, last name
    - must less dan equal to 50 characters
    - must filled
  - email
    - must be email format
    - must filled
    - can not more than 150 characters
    - can not have same email on database
  - password
    - can not less than 5 characters
    - must be filled

Change #3 - 24 February 2015
- Created file accountant_login.php
- Added .text-center to main.css
- Created file process_accountant_login.php
- Created file judge_registration.php
- Added permission to accountant_login.php & accountant_registration.php, if accountant already login then redirect to judge_registration.php
- Added permission to judge_registration.php if there's no accountant logged in, then redirect to accountant_login.php
- Validation on accountant_login.php 
  + Email
    * Email must be filled
    * Email must less than 150 character
  + Password
    * Password must be filled
    * Password must more than 5 character
  + Email & Password
    * email and password combination must exists on table accountant

Change #4 - 24 February 2015
- Created file process_judge_registration.php
- Added .text-left to main.css
- Added .percent90-width to main.css
- Table created "judge" with column 
  + id (int,11,AI,Primary)
  + id_judge (int,11)
  + accountant_id (int,11)
  + name (varchar,60)
  + password (text)
- Added automatically add/create table on backend_config.php

Change #5 - 24 February 2015
- create function to button "Add More" on judge_registration.php
- add validation to edit judge
  + name must filled
  + password must filled
  + id judge must filled
  + id judge must uniq
  + maximal name characters is 60
- add .percent95-width to main.css
- add function to edit and save button in each row of judges

Change #6 - 24 February 2015
- Add more works
- Save judge works
- Edit saved judge works
- Edit judge works
- create fie contestant_registration.php

Change #7
- create file process_contestant_registration.php
- all works on contestant_registration.php
- Table created "contestant" with column 
  + id (int,11,AI,Primary)
  + id_contestant (int,11)
  + accountant_id (int,11)
  + name (varchar,60)
  + country (varchar,60)
- Added automatically add/create table on backend_config.php

Change #8
- create file judge_login.php
- create file process_judge_login.php
- create file contestant_name.php

Change #9
- added .text-right in main.css
- create file process_contestant_name.php
- create file contestant_final_stage.php
- all function works on contestant_name.php

Change #10
- Table created "score" with column 
  + id (int,11,AI,Primary)
  + id_judge (int,11)
  + id_contestant (int,11)
  + stage1 (int)
  + stage2 (int)
  + stage3 (int)
  + stage4 (int)
- Added automatically add/create table on backend_config.php

Change #11
- remove limit 7 judge and contestant
- minor fix contestant name
- show contestant on contestant_final_stage.php

Change #12
- add score check to final stage
- scoring final stage works

Change #13
- add contestant_scoring.php
- auto populate contestant, judge, and scoring
- total score works

Change #14
- create process_contestant_scoring.php
- connected to database process_contestant_scoring.php
- final scoring by accountant works
- create contestant_scoring_stage1.php
- create contestant_scoring_stage2.php
- create contestant_scoring_stage3.php
- create contestant_scoring_final.php
- all works