Postassium Nitrate + sucrose formula help

[pelpel]

Hey guys. I have a chemistry project due soon and I am doing a potassium nitrate + sucrose reaction to make a "smoke bomb". I have done the reaction and everything but I need to explain what exactly is going on in the reaction and determine the complete balanced formula equasion. I have searched trying to find this but I can't seem to find anything relevant.

Here is a link to the reaction that I am doing
http://chemistry.about.com/od/demonstra ... bomb_2.htm

If you could help that would be great, thanks.