Is 'event' a reserved word in JavaScript?

Question

I am a beginner to Javascript. And when I was practicing I have noticed something.

Take this function:

Answer 1

Well, the code:

onkeypress="return showChar('some text', oEvent);"

Is the equivalent of the following JavaScript code:

element.onkeypress = function (eventObjectName) {
    return showChar('some text', eventObjectName);
};

It's just that browsers name the event argument as event.

So, the value of the attribute is wrapped in a JS function which receives an argument named event which is the event object.