js modify local file
https://stackoverflow.com/questions/4561157/is-it-possible-to-modify-a-html-file-from-which-the-script-is-called-using-js
https://stackoverflow.com/questions/6457041/modifying-local-files-using-html5-and-javascript
https://stackoverflow.com/questions/4561157/is-it-possible-to-modify-a-html-file-from-which-the-script-is-called-using-js
https://stackoverflow.com/questions/6457041/modifying-local-files-using-html5-and-javascript
