How to fix IE 6 transparent png background

css

{
display:block;

background-image:url(images/product_sel.png);!important
float:left;
background-repeat:no-repeat;

_background: none;

filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true', sizingMethod='fixed', src='http://www.your.com/your/your/images/product_sel.png');

}