The many-in-one diagrams let you switch between different diagrams by clicking on a label. However, the technique that has been used is inferior, making it not obvious (difficult to find), a bit more difficult for touch input, and impossible for users of accessibility tools or those not executing JavaScript.
Here’s roughly how it’s implemented:
<td onclick="document.getElementById('destroyer_bar').src = 'http://images.anandtech.com/graphs/graph16505/destroyer-power.png'">…</td>
The most important problem with this is that the table cell can be clicked on, but can’t be focused. You should roughly never have a click handler on a non-focusable element, focusable meaning elements like <a href>, <button>, <details><summary> or something with a tabindex="0" attribute. (But note that just adding tabindex="0" would not be sufficient, because onclick wouldn’t be triggered on pressing the Enter key. On links and buttons it does, because onclick is a misnomer for them, firing on activation rather than mouse click.)This would be far better markup, probably paired with style adjustments to shift the table cell padding to the anchor, and making that anchor `display: block`:
<td><a target="_blank" href="http://images.anandtech.com/graphs/graph16505/destroyer-power.png" onclick="document.getElementById('destroyer_bar').src = this.href; return false">…</a></td>
That way, (a) the link works without JavaScript, opening the requested diagram in a new window; (b) with JavaScript, it behaves as previously, except that it’s now focusable, so users of screen readers can interact with it; (c) as a link, it’s more discoverable (e.g. hover and it’s obviously interactive, where with the current one, I was just guessing based on the framing that maybe it was interactive despite all the signs telling me it was just text); (d) as a link, tapping on a touch screen will work more reliably (the browser will be more inclined to interpret a tap that moved slightly as a click rather than panning).One other thing I just noted: them http: URLs should be https:.