Key code for "mouse key up" and "mouse key down"
<p>How to access the key code for "mouse key up" in JavaScript?<br>
If I press the left mouse button then key code is one.</p>

<p>I want to fire some code when <code>onmousekeyup</code>. But whenever the mouse gets key up, this code does not fire. So I want to try using keycode for mouse key up when key is released (key up).</p>
