function DisplayPngByBrowser ( browser, img_path, width, height ) {
	var png_path;
	if (browser == 'Microsoft Internet Explorer') {
		document.write('<img alt="" src="images/blank.gif" style="width:'+width+'px; height:'+height+'px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+img_path+'\', sizingMethod=\'scale\');" />');
	}
	else if (browser == 'Netscape')
		document.write("<img alt='' src='"+img_path+"' />");
	else
		document.write("<img alt='' src='"+img_path+"' />");
	}