+1  A: 

Why not just extract the text from the content using jQuery and show that in your tooltip rather than show the HTML?

content = $('*',content).text().substring(0,1000) + "...<br><br>...
tvanfosson
I'd like to have images and show text color in the preview... using text() won't allow me to do that
fudgey
Is the content HTML flat or heavily nested? In a single container? Is it consistent at all? There are some circumstance where you could make it work easily, but not for arbitrary HTML.
tvanfosson
It's a RSS feed from a forum, so it's not deeply nested, but sometimes contains tables and images.
fudgey