function changeImgIE6(id, onOff) {
	if (onOff == 'off') {
		document.getElementById(id + '_on').style.display="none";
		document.getElementById(id + '_off').style.display="";
	} else {
		document.getElementById(id + '_off').style.display="none";
		document.getElementById(id + '_on').style.display="";
	}
}