Build enhancements for a web app

Develop enhancements for a php-based web application -Allow multiple file selection and upload of photos. -Add a mask inside the hour fields so the user doesn't have to enter the double dots ( : ). -Additionally to the above, automatically skip to the next field without having to hit TAB, when the user enters an hour. -Possibility to change the status of the posts to temporarily unpublish them without deleting -Possibility to duplicate a post. New ID, same content. -Pagination on the "list trips" page -Possiblity to search for a post, by name, within the "list trips" page