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 '';  
}