Javascript function addition on my SimpleMap Plugin (I have the code already)

I use SimpleMap Plugin on [login to view URL] where you can view every campground in BC. The campgrounds show up on the map as a red location bubbles. I want to change the colour of the location bubble for each of the categories I have. The categories are: Privately Owned Campsites, Provincial Parks, Recreation Sites in BC (Managed and User Maintained or Free) I have the directions from the SimpleMap tech team that tells me what to change but I need someone who knows javascript to change it. I will provide you with the instructions but you need to be comfortable with javascript. You will be able to practice on my test site and break it with no risk. I will give you ftp login information for the test site and when you have it working, I will copy what you did into my main site at tracksandtrails.ca. I also will want to be able add categories or change them as required. attached is the file that I think I need to change. And what the heck, also attached is the directions that I received from SimpleMap team.