function iepng_alphachannelbg(divid,bgimg) {

	var d=document.getElementById(divid);

	if(iecheck() && d) {

		d.style.backgroundImage = '';

		d.runtimeStyle.filter = "progid XImageTransform.Microsoft.AlphaImageLoader(src='"+bgimg+"',sizingMethod='scale')";

	}

}

function iecheck() {

	var pos = navigator.userAgent.indexOf("MSIE ");

	if (pos == -1) return false;

	var version = navigator.userAgent.substring(pos + 5);

	return (((version.indexOf("5.5") == 0) || (version.indexOf("6") == 0)  || (version.indexOf("7") == 0)) && (navigator.platform == ("Win32")));

}