Two events using onmouseover

Is it possible to have on mouseover trigger two events? For example changing an image and playing a sound.

Yes.

You can execute any amount of JavaScript you like when an event is fired.

onMouseOver="command1; command2; command3;"

Typically, if you want to execute a lot of code on an event, you would put the code in a function:

function do_this () {
//put the code here
}


onMouseOver = "do_this();"