function toggleMenu(oA){
	var oTd = oA.parentElement;
	var cSpan;

	if (oTd != null && 'undefined' != typeof(oTd)){
		cSpan = oTd.getElementsByTagName("span");
		if (0 < cSpan.length){
			if (-1 != cSpan[0].id.indexOf("submenu")){
				if ('none' == cSpan[0].style.display){
					cSpan[0].style.display = 'block';
					oA.childNodes[0].src = 'img/spacer.gif'
				} else {
					cSpan[0].style.display = 'none';
					oA.childNodes[0].src = 'img/spacer.gif'
				}
			}
		}
	}
}