function drawPng(url, width, height, id)
{
    document.write('<div id="' + id + '" style="width: ' + width + 'px; height: ' + height + 'px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'' + url + '\', sizingMethod=\'scale\');"></div>');
    if (!document.getElementById(id).style.filter)
    {
        document.getElementById(id).innerHTML = '<img src="' + url + '" width="' + width + '" height="' + height + '">';
    }
}