Check Values for WebStorage

Hey guys. I've got a little space game here:

dl.dropbox.com/u/1378330/SpaceSim.capx

All the info on the stars is saved to WebStorage when generated, then loaded back from WebStorage. However, when generating stars, I want to check that there aren't too many occupying one spot - i.e. that no stars are, say, closer than 1000px. I can't really think of any way to do this. Any thoughts?

what if you generated them from a middlepoint of the layout and then get a random angle + a distance and add that distance to a var and create the next one, so the distancevar is like a counter