var sfHover = function()
{
	var sfEls = document.getElementById("mainMenu").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);


var oldLocation = "";

function changeLocation( newLocation )
{
	newLocation = newLocation.options[newLocation.selectedIndex].value;
	if ( oldLocation != "" )
	{
		document.getElementById(oldLocation).className = "hidden";
	}
	document.getElementById(newLocation).className = "visible";
	oldLocation = newLocation;
}