Passing event data in the inline event handlers

Question

I have an <input> which has an onkeydown inline event handler. In this handler, I'd like to call a function and pass a special parameter to it - the event data.

When I want to handle events (e.g. onmousemove) for the whole document, I use the following code:

document.onmousemove=function(e) { // here I can make a good use of the 'e' variable, // for example extract the mouse coordinates from it } 

And it works (although I don't know where the e variable - event data - comes from).
But this time I want to use the function only for the <input> mentioned above.
I need to pass the event data to the function so it can get the pressed key's code. And I want to do it in that inline event handler. I've created a function:

function myfunc (e) {     var evt=window.event?event:e;     var code=evt.keyCode;     alert (code); } 

and tried all of these methods:

<input onkeydown="myfunc(this)">

<input onkeydown="myfunc(this.onkeydown)">

<input onkeydown="myfunc(onkeydown)">

But none of them worked, the alert window kept displaying "undefined".
I looked for a solution to my problem in Google, but didn't find anything that could help me solve it.

Answer 1

<input onkeydown="myfunc(event)">

function myfunc (e) {     e = e || window.event;     var code = e.keyCode;     alert (code); }