startList = function() {
		if (document.all&&document.getElementById) {
			navRoot = document.getElementById("nav");			
			for (i=0; i<navRoot.childNodes.length; i++) {
				node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
						this.className+=" over";
					}
					node.onmouseout=function() {
						this.className=this.className.replace(" over", "");
					}
				}
			}
		}
	}
	
	/** 
	 * This function toggles the visibility of the input that readas the passcode for the tour
	 * @return
	 */
	function show_passcode()
	{
		var passcodeDiv = document.getElementById("passcode-input")
		if( passcodeDiv.style.display == 'block')
		{
			passcodeDiv.style.display = 'none'
		}
		else
		{
			passcodeDiv.style.display = 'block'
		}
	}
	
	window.onload=startList;