Changes

- add music.png
- check_login.php : fix first login issue
- footer.php : add developer signature
- general.php : modify menu array
- jsFunctions.js : add fixHeight function and reformat code
- lang.php : add additional language variables
- login.php : fix form design
- style.css : add and reformat
- index.php : reformat
- home_page.php : add content
- pageheader.php : fix links and text
- side_bar.php : fix links and text