JavaScript In SVG "cross Compatability" With Window.open

I have a static .svg file with embedded onclick="open()"'s all over.

The svg is <embed>ded in a minimal .html file.

The onclick's work fine in IE w/Adobe SVG viewer 3: click and a new
window opens with the specified URL.

But using the Adobe SVG viewer in Mozilla, neither the mouseovers or
the onclicks work, although the image itself renders.

However, the PRIMARY problem that I need to fix is that the onclick's
don't work in Safari with the Adobe viewer. The mouseovers DO work,
but the onclick's do not.

I've tried specifying window.open() instead of just open(). I've also
tried changing the onclicks to call a function openNewWindow which in
turn calls window.open. Still no luck in safari.

I've also tried defining the openNewWindow function in the html
wrapper, and specifying a3:scriptImplementation="browser". In this
case, the SVG still functions as desired in IE, but neither the
mouseovers nor the onclicks work in Safari.

To summarize, I need to get a new window with a specified URL to open
on click for Safari with the Adobe SVG viewer 3.