/*
.png { filter: expression(fixPNG(this)); }
 */

try{
	document.execCommand("BackgroundImageCache", false, true);
} catch(e) {
	
}

function fixPNG(element, method, source) {
	if (/MSIE (5\.5|6).+Win/.test(navigator.userAgent)) {
		var src;
		if (element.tagName == 'IMG') {
			if (/\.png$/.test(element.src)) {
				src = element.src;
				if (source=='sub') {
					element.src = '../images/blank.gif';
				} else {
					element.src = 'images/blank.gif';
				}
			}
		} else {
			src = element.currentStyle.backgroundImage
					.match(/url\("(.+\.png)"\)/i)
			if (src) {
				src = src[1];
				element.runtimeStyle.backgroundImage = 'none';
			}
		}
		if (method) {
			if (method == 'scale') var scale_mode = 'scale';
		} else {
			var scale_mode = 'crop';
		}
		if (src) element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='" + scale_mode + "')";
	}
}