[Javascript] Keystroke event

[elmuchacho at gmail.com (Laurent Muchacho)]

Hi

Does anyone know a good reference or have a nice examples to catch the
keystroke ctrl+s in the browser
I wrote this simple function but everytime the browser try to do a save.

This only need to work in firefox.

To explain why I want to do this if anyone is interested, On our cms
everytime you edit a piece of text you have to click the save button and I'm
starting to get tired of this everytime I thought of catching the ctrl+s and
submiting the form automaticly :-)

Many thanks

function keyDown(e) {
    var keycode = e.which
    if(keycode==17){
        document.onkeydown = trigger_ctrlS;
        return true
    }
}
function trigger_ctrlS(e){
    var keycode = e.which
    if(keycode==83){
        alert("ctrl s: ")
        document.onkeydown = keyDown
        return true
    }
}
document.onkeydown = keyDown
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