// update language image for hover/hon-hover state
function updateLangImg( imgName, strLanguage, bHover )
{
	// get image
	var img = document.getElementById( imgName );
	var str = "";
	if( ( null != img ) && ( null != bHover ) && ( null != strLanguage ) )
	{
		if( bHover )
			str = "./Resources/lang" + strLanguage + "-ovr.gif";
		else
			str = "./Resources/lang" + strLanguage + ".gif";
		img.src = str;
	}
}