Execute JavaScript

Based on some searching of the forums, it looks as though Storyline has the capability to execute JavaScript based on some sort of user interaction.

For example - Suppose a button is on the screen and the user clicks the button.
This will trigger a small script containing many things such as setting variables, showing and hiding items, changing their state, and running conditional checks.

changeState("circle","state2");
++variable;
hide("object4");
show("object2");

if (variable2==3) {
$("#object2").animate({left: "+=50px"});
}

I realize the above code ideas would probably not be the right way to write stuff for use with a Storyline project but hopefully they serve as examples that make some sense.

I wanted to verify if this is possible and, if so, can someone point me to a document for specific commands for use with Storyline?