function setPng24(obj) {
	 obj.width=obj.height="1";
	 obj.className=obj.className.replace(/\bpng24\b/i,"");
	 obj.style.filter= "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');"
	 obj.src="";
	 return "";
}