Adding xlinks to the textext object.

Hi! Great extension! I have a small issue though: I find that when adding an xlink to an object created by textext, the resulting link can be hard to click on (in firefox).

I have an example (temporarily) here:

http://golux.podzone.net/misc

By comparison, the link associated with the seemingly much smaller "A distant galaxy...." text is easy to click on. I realise this may not be textext's fault or even a 'real' problem at all but I'm not expert enough with inkscape/svg to know if this is something I could (easily) work around.