// Title: pageMenu.js
// Last update: 29 Oct 09

function pageMenu()
	{
	// setup global variables
	pageTitle = document.title.split('.');
	pageTag = pageTitle[0];
	pageLabel = pageTitle[1];	
		
	// setup local variables
	var parentDiv=document.getElementById('parentNav')
	var bbarNav=document.getElementById('pageBbar')
	
	treeIndex = myTags[pageTag];
		
	upPage=myTree[treeIndex][oParent];
	nextPage=myTree[treeIndex][oNext];
	prevPage=myTree[treeIndex][oPrevious];
	downPage=myTree[treeIndex][oChild]; 
	
	//alert("upPage="+upPage+" nextPage="+nextPage+" prevPage="+prevPage+" downPage="+downPage);
	
	header1 = '<div class="linkList1" >'
	header2 = '<div class="linkList2" ><br>'
	
	menuInset();
	
	// output to top & bottom divs
	parentDiv.innerHTML = header1 + str;
	bbarNav.innerHTML = header2 + str;
	}
	
function menuInset()
	{	
	str = '<ul>';

	homePage = 0;
	homeLink = myTree[homePage][oTag] + "." + myTree[homePage][oLabel] + ".html";
	str += '<li><a href="' + myURL + subWeb + '/html/' + homeLink + '">Home</a></li>';
	
		
	if (upPage != "X")
		{
		upLink = myTree[upPage][oTag] + "." + myTree[upPage][oLabel] + ".html";
		str += '<li><a href="' + myURL + subWeb + '/html/' + upLink + '">Up</a></li>';
		}

	if (nextPage != "N")
		{
		nextLink = myTree[nextPage][oTag] + "." + myTree[nextPage][oLabel] + ".html";
		str += '<li><a href="' + myURL + subWeb + '/html/' + nextLink + '">Next</a></li>';
		}
		
	if (prevPage != "P")
		{
		prevLink = myTree[prevPage][oTag] + "." + myTree[prevPage][oLabel] + ".html";
		str += '<li><a href="' + myURL + subWeb + '/html/' + prevLink + '">Previous</a></li>';
		}
		
	if (downPage != "D")
		{
		downLink = myTree[downPage][oTag] + "." + myTree[downPage][oLabel] + ".html";
		str += '<li><a href="' + myURL + subWeb + '/html/' + downLink + '">Down</a></li>';
		}
	
	str += '</ul> ';
	str += '</div>';	
	}