list of javascript objects/features unique to a given browser?
<p>Has anyone seen a list of features unique to a given browser? For example, if you want to target just IE 8 acting like itself, you could do:</p>

<pre><code>if (typeof document.documentMode != undefined) {
if (document.documentMode == 8) {
    ...stuff
}
</code></pre>

<p>}</p>

<p>Likewise, for all versions of IE you could check for window.clipboardData . But what about Firefox and webkit? I'm specifically trying to detect webkit at the moment, but I've been looking for a list like this for ages without luck.</p>
