Modify to a Javascript HeatMap Library

We are using the below heatmap library which is written in javascript. [login to view URL] We want to customise how the heatmap colors are displayed and the customisation that we want to do needs logical change made to some core components of the library. Our 2 main problems are: 1- Limitation in choosing the exact color according to data values. Imagine we have 3 values (1,2,3) and 3 colors (1-green, 2-orange, 3-red). If the data value is 1 that’s not a problem, it only shows green. But if data value is more than 1 then it shows all the colors in order. So for example: if value is 3, it will show red in the center, orange in the middle and green at the outside of the circle. 2- Limitation for modifying how overlapping circle colors behave. Component adds the data values of the overlapping areas together. So if we have 2 green zones with some overlap to each other. The overlap area would show in orange. Please review the component code and identify the places that are related to the above functionality and let me know if this is something you can do. Please note that this component is used in our web app(asp.net) and thats where we want you to work and deliver the solution. I want fully tested, perfectly working, bug free solution. We will provide you with a test server with the web app and the database running. Please place a bid by telling me more about your related javascript experience also please write the word -jsguru- on top of your bid so that I know you have actually read the project description.