To make changes to the engine DLE 13 (php/mysql/js/html/css)

Looking for diligent/attentive programmer, able to bring the task to its end, and familiar with the engine DLE version 13.0

The job is routine and requires attention to detail, detail TOR in the attachment.
Carefully read all of the links in the task (screenshots with explanations, documentation).

Before you start work later to re-discuss all the points in the TOR to ensure that you cope with the task.