function removeLink(str) {
		for (i = 0; i < str.length; i++) {
			startPos = str.indexOf("<");
			endPos = str.indexOf(">") + 1;
			linkTag = str.substring(startPos, endPos);
			str = str.replace(linkTag, "");
		}
		return str;
	}

function highlight(selectedLink) {
	NavLinks = new Array();
	NavLinks[0] = "<a href='#morning' onClick='highlight(1);'>Thursday Morining</a>";
	NavLinks[1] = "<a href='#afternoon' onClick='highlight(2);'>Thursday Afternoon</a>";
	
	for (i=1; i<NavLinks.length; i++) {
		link = "link" + i;
		document.getElementById(link).innerHTML = NavLinks[i-1];
	}
	
	selectedLinkStr = "link" + selectedLink;
	linkText = NavLinks[selectedLink-1];
	newText = removeLink(linkText);
	document.getElementById(selectedLinkStr).innerHTML = newText;
}