function displayHide(id) {
	var el = document.all ? document.all(id) :
	document.getElementById ? document.getElementById(id) : null;
	if (el && el.style) el.style.display = (el.style.display == 'none') ? '' : 'none';
}
var iRightAr = new Image(); iRightAr.src = "images/menu/ms_leftArrowRight.png";
var iDownAr = new Image(); iDownAr.src = "images/menu/ms_leftArrowDown.png";

function swapImage(id) {
	var el = document.all ? document.all(id) :
	document.getElementById ? document.getElementById(id) : null;
	if (el.src.indexOf('images/menu/ms_leftArrowRight.png') >= 0)
		el.src = iDownAr.src;
	else
		el.src = iRightAr.src;
}