function checkHash() {
	if (location.hash) {
		var strInstructor = location.hash.substr(1,location.hash.length);
		showBio(strInstructor);
	} else {
		showBio('intro');
	}
}

var currentBio = "intro";
function showBio(obj) {	
	if (obj.tagName == "A") {
		var objLink = obj;
		obj = objLink.href.split("#")[1];
	} 
	document.getElementById(currentBio).style.visibility = "hidden";
	if (obj != "intro") {
		document.getElementById(obj).style.top = document.getElementById(obj+"Item").offsetTop + "px";
		document.getElementById(obj+"Item").firstChild.className = "clicked";
		if (currentBio != "intro") document.getElementById(currentBio+"Item").firstChild.className = "";
	}
	document.getElementById(obj).style.visibility = "visible";
	currentBio = obj;
	
}