var PngAlpha = new Array();

function PngAlphaRegister(id, src)
{
    PngAlpha.push(Array(id, src));
}

function PngAlphaFix()
{
    for(var i=0; i<PngAlpha.length; i++)
    {
        elem = document.getElementById(PngAlpha[i][0]);
        if (elem.runtimeStyle)
        {
            // The 'runtimeStyle' element property should only be available in MSIE
            elem.style.backgroundImage = 'none';
            elem.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+PngAlpha[i][1]+"',sizingMethod='scale')";
        }
    }
}