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 '';
 }