[PATCH] W3C validation

[Dirkjan Ochtman]

Ben wrote:
>  var nodes = document.getElementById('graphnodes');
> +nodes.innerHTML = '';
>  var nodebgs = document.getElementById('nodebgs');
> +nodebgs.innerHTML = '';

Looks like this isn't based on crew tip. Could you rebase it?

Also, why exactly do we need all the <li></li>'s? That seems ugly?

Cheers,

Dirkjan