How to detect if player is at console (f8)

[NachoASD]

You can probably do it from js in html, with document.body.onkeydown.
It will look like this.

document.body.onkeydown = function(e){
    //F8 == 119 (keyCode)
    alert(String.fromCharCode(e.keyCode)+" --> "+e.keyCode);
};