Recording keystrokes

var recording;
var outString = '';

$(document).keyup(function(event) {
	if (event.keyCode == 192)
	{
		recording = true;
	}
	else if (recording)
	{
		if (event.keyCode == 13)
		{
			alert(outString);
			recording = false;
			outString = '';
		}
		else
		{
			outString += String.fromCharCode(event.keyCode);
		}
	}
});