function showMenu(menu)
{
	//if (window.event) mouseHeight = window.event.clientY;
	
   	hideMenu(mnuSelected);
	
   	mnuSelected = menu;
	
	document.images["arr" + menu].src = bArrowOver;
	
	var mCat = document.getElementById("cat" + menu);
	var mTop = document.getElementById("top" + menu);
	mCat.style.color = '#'+ cPopLink;
	
	if (true) { // not mac ?
		pageHeight = document.body.clientHeight;
		spanHeight = mTop.clientHeight + mouseHeight
		upperHeight = mouseHeight - mTop.clientHeight
	} else {
		pageHeight = 1;
		spanHeight = 0;
		upperHeight = 0;
	}
	
	if ((pageHeight > spanHeight) || (upperHeight < 0)) {
		mTop.style.top  = mCat.style.top;
	} else {
		if (true) { // not mac ?
			mTop.style.top  = mCat.style.top;
			mTop.style.top  = getRealTop(mTop) - mTop.clientHeight - 15;
		} else {
			mTop.style.top  = getRealTop(mCat);
			mTop.style.top  = getRealTop(mCat) - mTop.clientHeight - 1;
		}
		mTop.childNodes(0).childNodes(0).childNodes(mTop.childNodes(0).childNodes(0).children.length - 1).childNodes(0).childNodes(0).src = "http://www.eknowhow3.com/contentparent/wg/firefighthers/t.gif";
	}
	mTop.style.left = 31;
	
	var mRow = document.getElementById("row" + menu);
	if (mRow.className != 'current') {
		mRow.className = 'highlight';
	} else {
		mRow.className = 'current';
	}
	mTop.style.visibility = 'visible';
}//showMenu
  
function hideMenu(menu)
{
   	if (menu != '') {
		var mRow = document.getElementById("row" + menu);
		var mCat = document.getElementById("cat" + menu);
		var mTop = document.getElementById("top" + menu);
		
	  	if (mTop) mTop.style.visibility = 'hidden';
		
		if (mRow.className != 'current') {
			mRow.className = 'mytd'	
			mCat.style.color = '#'+ sideNavLinkColor;
			document.images["arr" + menu].src = bArrowOut;
		} else {
			mRow.className = 'current'
		}
	}
}//hideMenu