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='about:blank;';
return '';
}