Ext.onReady(function(){
	// shorthand
  var Tree = Ext.tree;
	
	var tree = new Tree.TreePanel({
		el:'navigationMenu',
		animate:true, 
		autoScroll:true,
		autoHeight:true,
		lines:false,
		rootVisible:false,
		border:false
	});
	
	var root = new Tree.TreeNode({text: ''});
	tree.setRootNode(root);
	
	var selectedPath = '';
	
	for (i = 0; i < navigationMenuContent.length; i ++)
	{
		var node = new Tree.TreeNode({text: navigationMenuContent[i].text, leaf: true, href: navigationMenuContent[i].url})
		root.appendChild(node);
		if (navigationMenuContent[i].id == selectedNavigationItem)
			selectedPath = node.getPath();
	}
		
	tree.render();
	
	if (selectedPath != '')
		tree.selectPath(selectedPath);
	
  root.expand(false, /*no anim*/ false);
	
});