img {
	display: expression(
		(/\.png$/.test( this.src.toLowerCase()) ? this.runtimeStyle.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + this.src + '")' : null),
		(/\.png$/.test( this.src.toLowerCase()) ? this.src = 'images/blank.gif' : null)
	);
}

.png {
	position:		relative;
	behavior:		expression((
		this.runtimeStyle.behavior="none")&&(this.pngSet?this.pngSet=true:(this.nodeName == "IMG" && this.src.toLowerCase().indexOf('.png')>-1?(this.runtimeStyle.backgroundImage = "none",
		this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizingMethod='image')",
		this.src = "img/blank.gif"):(this.origBg = this.origBg? this.origBg :this.currentStyle.backgroundImage.toString().replace('url("','').replace('")',''),
		this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.origBg + "', sizingMethod='crop')",
		this.runtimeStyle.backgroundImage = "none")),this.pngSet=true)
	);
}