function fixPNG(){
	$$('img[src$=png]').each(function(el){
		var coord = el.getCoordinates();
		el.setStyles({
			width: coord.width,
			height: coord.height,
			filter: 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + el.src + '", sizingMethod="scale")',
			visibility: 'hidden'
		});
		el.src = 'img/trans.gif';
		el.addEvent('load',function() {
			el.setStyle('visibility','visible');
		});
	});
}

if(window.ie6) window.addEvent('domready', fixPNG);