Finally, I can publish HTML5 with GameMaker, so to not make you wait until I have my other project (The platfomer one) I'm publishing a demonstration i made following some tutorials, when i was learning to use some GameMaker functions, also i added sounds and music from 2 fantastic applications.

http://famitracker.com/

http://www.bfxr.net/

PD: With my platformer, I'm currently testing for bugs, and doing the audio as well, but still only has one level, and is taking me a lot of time. We'll see how it turns out.