Hi!
I tried validating a page that uses the EasyPlot widget, and I noticed that the widget was causing 2 errors. <div> tags can't have width and height attributes; that information should be contained in the style attribute. Here's a quick fix.
Change this line:
<div id="${id}" style="margin: 0 auto 0 auto;" width="${width}" height="${height}"></div>
to:
<div id="${id}" style="margin: 0 auto 0 auto; width=${width}px; height=${height}px;"></div>
...and it will validate.
