function mousealphaImages()
{
	document.getElementById('headtd').style.backgroundImage = "none";
	document.getElementById('headtd').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+documentRoot+"web/design/head.png', sizingMethod='scale')";
	
	document.getElementById('headwelcome').style.backgroundImage = "none";
	document.getElementById('headwelcome').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+documentRoot+"web/design/welcome_bg', sizingMethod='scale')";
}