<script type="text/javascript">
		var doc;
		var sections = new Array("h1", "h2", "h3");

		window.onload = makeTOC;

		function countElements() {
			var nodeDoc = document.getElementById("doc");
			alert(nodeDoc.childNodes.length);
		}

		function countElements2() {
			var count = 0;
			var myElement = document.getElementById("doc");
			var node = myElement.firstChild;
			for (var i = node; i != null; i = i.nextSibling) {
				//alert(i.nodeName + i.nodeValue);
				count+=1;
			}
			alert(count);
		}

		function makeTOC() {
			doc = document.getElementById("doc");
			var TOC = document.getElementById("toc");
			TOC.innerHTML = "<h1>Table of Contents</h1>";
			var TOCList = document.createElement("ol");
			TOC.appendChild(TOCList);
			createList(doc, TOCList);
		}

		function levelNum(node) {
			for (var i = 0; i < sections.length; i++)
				if (node.nodeName == sections[i].toUpperCase())
					return i;
			return -1;
		}

		function createList(object, list) {
			var prevLevel = 0;
			var headNum = 0;
			for (var n = object.firstChild; n != null; n = n.nextSibling) {
				var nodeLevel = levelNum(n);
				if (nodeLevel != -1) {
					headNum += 1;
					if (n.id == "")
						n.id = "head" + headNum;
					var listItem = document.createElement("li");
					var linkedItem = document.createElement("a");
					linkedItem.innerHTML = n.innerHTML;
					linkedItem.href = "#" + n.id;
					listItem.appendChild(linkedItem);
					//append to appropriate level
					if (nodeLevel == prevLevel)
						list.appendChild(listItem);
					else if (nodeLevel > prevLevel) {
						var nestedList = document.createElement("ol");
						nestedList.appendChild(listItem);
						list.lastChild.appendChild(nestedList);
						list = nestedList;
						prevLevel = nodeLevel;
					}
					else if (nodeLevel < prevLevel) {
						var levelUp = prevLevel - nodeLevel;
						for (var i = 1; i <= levelUp; i++)
							list = list.parentNode.parentNode;
						list.appendChild(listItem);
						prevLevel = nodeLevel;
					}
				}
			}
		}
   </script>