<!--
var contentList = [];
var oldButton = "";
var navElementId = "";


/* change the content area and jump up to the top */
function displayUp(item){
	display(item);
	window.location.hash = 'displayArea';
}

/* receives the unique ID of the content area to be displayed */
/* closes current content area and opens new content area */

function display(item){
	setButton(item);	
	/* hide all content */
	for( var i = 0; i < contentList.length; i++)
	{
		var contentArea = document.getElementById(contentList[i]);
		if(contentArea.id != item)
		{
			contentArea.style.display = 'none';
			if(document.getElementById(contentArea.id + 'Tool'))
				hideToolbar(contentArea.id);
		}
	}
	/* display the selected content */
	document.getElementById(item).style.display = 'block';
	if(document.getElementById(item + 'Tool'))
		showToolbar(item);
	// prevent link from being followed 	
	return false;
}

/* Set the navigation button properties */
function setButton(elementId){
	
	if(oldButton != "")
	{
		document.getElementById(oldButton).style.fontWeight = 'normal';
		/* document.getElementById(oldButton).style.color = ''; */
	}
	oldButton = elementId + "Button";
	document.getElementById(oldButton).style.fontWeight = 'bold';
	/* document.getElementById(oldButton).style.color = '#000000'; */
}

/* add content and display the requested area on first load */
function addContent(elementId){
	contentList.push(elementId);
	if(navElementId != elementId)
	{
		document.getElementById(elementId).style.display = 'none';
		if(document.getElementById(elementId + 'Tool'))
			hideToolbar(elementId);
	}
	else
	{
		document.getElementById(elementId).style.fontWeight = 'bold';
		setButton(elementId);
	}
}
function setNavElementId(navEl){
	navElementId = navEl;
}

/* display a toolbar */
function showToolbar(elementId){
	document.getElementById(elementId + 'Tool').style.display = 'block';
	document.getElementById(elementId + 'ToolHead').style.display = 'block';
	// allow generic toolbar to hide
	if(document.getElementById('defaultTool'))
	{
		document.getElementById('defaultTool').style.display = 'none';
		document.getElementById('defaultToolHead').style.display = 'none';
	}
}
/* hide a toolbar */
function hideToolbar(elementId){
	document.getElementById(elementId + 'Tool').style.display = 'none';
	document.getElementById(elementId + 'ToolHead').style.display = 'none';
	// redisplay generic toolbar
	if(document.getElementById('defaultTool'))
	{
		document.getElementById('defaultTool').style.display = 'block';
		document.getElementById('defaultToolHead').style.display = 'block';
	}
}

/* make sure there are no duplicate toolbars on initial display */
function cleanDisplay(currentId){
  if(document.getElementById(currentId + "Tool")){
    showToolbar(currentId);
  }
  else if(document.getElementById('defaultTool')){
    document.getElementById('defaultTool').style.display = 'block';
    document.getElementById('defaultToolHead').style.display = 'block';
  }
}

/* display a photo from the photo gallery */
/* -- should be pulled to different file -- */
function openPhoto(photoPage){
	window.open(photoPage, "mywindow", config="resizable=no,status=no,location=no, menubar=no, width=550,height=550");
}
-->