attempt at fixing tab open blink

This is the "fix" I'm currently using to fix the background blink problem that occurs when the tab first loads.

The following file is changed:
* script.js

Description of changes:
* got rid of the timer seems to fix this blink issue.

Thoughts:
* this is by no means a comprehensive fix. The issue in question is the background image flashing (reloading) during loading, and I think a better fix would be to stop this specific behavior. However, I don't see any side effects with not having the timer, hence my current fix.

Best,

xkxx