Working on Star Sector again, now with more color!

Colored boxes for stars form dark red, to red, orange,yellow, white and lightblue. I want to add a dead stupid random number generation scheme based on a hard-coded seed, or one entered by the user and also position. Each coordinate has a horizontal and vertical component on this 2D map, which gives me a number. I get the pseudo random # by multiplying the seed times the 'galactic' coordinates, and take the square root and the remainder after the decimal poinr.
Whew!
Then when the user clicks on a star, we shift the map by adding or subtracting to the 'galactic' coords, do some math and draw new star map. I will need to delete all the existing clickable star divs or it will get very messy and confusing! 8-P

Map!