Determine if "+" (plus) key in keydown is from the numpad?
<p>I am using the following code to determine which key is pressed by the user.</p>

<pre><code>$(document).keydown(function(e){
    var code = (e.keyCode? e.keyCode : e.charCode);
    $("#keyCode").html("Key Code: " + code);
});
</code></pre>

<p>My problem is that the code for +/= key is the same as the code for the numpad plus key. Both are 107. How can I tell which of these two keys were pressed?</p>

<p>Update</p>

<p>It looks like this problem is specific to Firefox. Chrome and IE give me codes of 107 and 187.</p>
