blink in raphaeljs
===

i have a world map, exactly the same as in http://raphaeljs.com/world/, but all countries have it's own png background, which i want to change at some point. 

The problem is when i change countries backrounds here:

    for (var country in countries) {
        countries[country].attr('fill', getCountryBackground(country));
    }

Whole map blinks for a moment in Firefox, Safari and Opera (IE and Chrome are ok). Is there a way to fix that?
