Non-Euclidean Javascript

Are any of the Crew proficient with Javascript? I plan to manually update the countdown timer until I can cobble together a dynamic timer. When adding the timer to the sidebar, I managed to eliminate the Oldest Pending Proposal - but not permanently, I do have a backup of the template.

For now the timer decrements by 1 but is also incremented by 1 due to Crewmember Rodney's actions, so we remain at T=15 days.