function web20boxExchange(showId, hideId, leftRight) {
	var showBox = document.getElementById(showId);
	var hideBox = document.getElementById(hideId);
	var showButton = document.getElementById(showId + "-button");
	var hideButton = document.getElementById(hideId + "-button");
	if (showBox && hideBox && showButton && hideButton) {
		var par = showButton.parentNode;
		par.className = "buttons-" + leftRight;
		showButton.className = showButton.className.replace(new RegExp("disabled\\b"), "");
		hideButton.className = hideButton.className.replace(new RegExp("disabled\\b"), "");
		hideButton.className += ' disabled';
		showBox.style.display = 'block';
		hideBox.style.display = 'none';
	}
}

function sfHover() {
	var sfEls = document.getElementById("navigation").getElementsByTagName("LI");
	for (var i = 0; i < sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className += " sfhover";
		}
		sfEls[i].onmouseout = function() {
			this.className = this.className.replace(new RegExp("sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);