Event.observe(window, 'load', function () {
	if (!(typeof ActiveXObject != 'undefined' && typeof XMLHttpRequest == 'undefined')) {
		return;
	}

	var fixablePngs = $$('img.fixpng');
	var pngSource;

	for (var i=0; i<fixablePngs.length; i++) {
		pngSource   = fixablePngs[i].src;
		filterStyle = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + pngSource + '")';
		fixablePngs[i].src = '/img/transparent.gif';
		fixablePngs[i].style.filter = filterStyle;
	}
});