Prototype.Browser.IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE") + 5)) == 6;
Prototype.FixPNG = { Pixel: '/img/transparent.gif' };

Element.addMethods({
	fixpng: (Prototype.Browser.IE && Prototype.Browser.IE6) ? function(element) {
		function fixPosition(element) { if (element.style.position != 'absolute') element.style.position == 'relative'; }
		function filter(src, method) { return "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,sizingMethod='" + method + "',src='" + src + "')"; }
		var elementName = element.nodeName.toLowerCase();
		if (elementName == 'img' || elementName == 'input') {
			if (element.src && element.src.match(/.*\.png([?].*)?$/i)) {
				element.setStyle(
        {
        	filter: filter(element.src, element.hasClassName('pngfix_resize') ? 'resize' : 'crop'),
        	width: element.getWidth(),
        	height: element.getHeight()
        });
				element.src = Prototype.FixPNG.Pixel;
				fixPosition(element);
			}
		}
		{
			var image = element.currentStyle.backgroundImage;
			if (image.indexOf(".png") != -1) {
				element.setStyle({
					filter: filter(image.split('url("')[1].split('")')[0], 'crop'),
					backgroundImage: "none"
				});
				element.childElements().each(fixPosition);
			}
		}
	} : function(element) { return false; }
});

function ie6_png() {
	if (Prototype.Browser.IE && Prototype.Browser.IE6) {
		
		$$('img[@src$=.png]').each(function(element) { element.fixpng(); });
		$$('.pngfix').each(function(element) { element.fixpng(); });
	}
}