javascript multiple keys pressed at once
<p>I'm trying to develop a javascript game engine and I've came across this problem:</p>

<p>When I press <strong>space</strong> the character jumps.
When I press the right arrow the character moves right.</p>

<p>The thing is that when I keep pressing right then I press space the character jumps then it stops moving.</p>

<p>I use the <strong>keydown</strong> function to get the key pressed, how can I check if there're multiple keys pressed down?</p>
