You need to create a .js file from a text editor like Notepad++ with the above code inside. Then you just have to create an extension in GameMaker and adds the JS file in it.
haha yes! almost
Audio is working, only after the second keystroke is released (any key stroke).
Tried adding a simulated keystroek, but it didn't help.
I have a "splash" screen with no sound, and it then moves to a second room with the menu. There is supposed to be music playing right away, but it doesn't at all (untill you return to the main menu from the main game room, i.e. when you go "bac" one room, and the room of the menu retsrats).
If this is the best we can do, i'll take it. I hope it is not, but I don't understand the JS code to alter it