Javascript Alpha Background PNG Fix IE6

Want to fix the background PNG 24 Alpha image of an element in IE6?

Here's how I do it

function FixIEPngBG(elmnt){
if ((navigator.appVersion.indexOf('MSIE 6')>-1) && (document.body.filters)){
bkg = (elmnt.background? elmnt.background : (elmnt.style.backgroundImage? elmnt.style.backgroundImage : elmnt.currentStyle.backgroundImage));
bkg=bkg.replace('url(', '');
bkg=bkg.replace(')', '');
while (bkg.indexOf('"')>-1){
bkg=bkg.replace('"', '');
}
elmnt.style.backgroundImage="url(images/blank.gif)"; // has to have a background image otherwise it wont be recognised on drag.
elmnt.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+bkg+"', sizingMethod='scale');";
}
}