/** Wellness Weekly Main **/
var navDateText = "All Articles by Date";
var navTopicText = "All Articles by Topic";
var paneDivs = ["article-date", "article-topic", "article-main"];
var currentPane = "article-main";
var currentDateMain ="";
var currentYearSelect ="";
var currentMonthSelect ="";
var maxNumberOfTopics = 6;

// Display select article pane
function selectPane(divId) {
	var paneEL = document.getElementById(divId);
	var pagerEL = document.getElementById('pager');
	var allArticlesLink = document.getElementById('all-articles-link');
	var allArticlesLinkText = document.getElementById('all-articles-inner');
	var allArticlesText = document.getElementById('all-articles-text');
	var articleNavText = "";
	
	paneEL.style.display="block";

	if (divId == 'article-topic') {
		chgImg('article_topic_tab', 'images/article_topic_tab_on.gif'); 
		chgImg('article_date_tab', 'images/article_date_tab_off.gif');
		currentPane="article-topic";
		currentTab="topic";
		setNav('topic');
		// Hide nav pager
		pagerEL.style.display='none';
		
		allArticlesLink.style.display="none";
		allArticlesText.style.display="block";
		allArticlesText.innerHTML=navTopicText;

	} else if (divId == 'article-date'){
		chgImg('article_topic_tab', 'images/article_topic_tab_off.gif'); 
		chgImg('article_date_tab', 'images/article_date_tab_on.gif'); 
		currentPane="article-date";
		currentTab="date";
		setNav('date');
		// Hide nav pager
		pagerEL.style.display='none';
		
		allArticlesLink.style.display="none";
		allArticlesText.style.display="block";
		allArticlesText.innerHTML=navDateText;
	} else { //Main Article View
		setNav(currentTab);
		
		if (currentTab=='topic') {
			chgImg('article_topic_tab', 'images/article_topic_tab_on.gif'); 
			chgImg('article_date_tab', 'images/article_date_tab_off.gif'); 
			articleNavText = navTopicText;
		
		} else {
			chgImg('article_topic_tab', 'images/article_topic_tab_off.gif'); 
			chgImg('article_date_tab', 'images/article_date_tab_on.gif'); 
			articleNavText = navDateText;
		}
		
		currentPane="article-main";
		
		allArticlesText.style.display="none";
		allArticlesLink.style.display="block";
		// Update nav text
		allArticlesLinkText.innerHTML=articleNavText;

	}
	// Hide other open div
	for(var i = 0; i < 3; i++){
		paneEL = document.getElementById(paneDivs[i]);
		//check if div is open
		if(paneDivs[i] != divId && paneEL.style.display == "block") {
			paneEL.style.display = "none";
		}
	}
}

function setNav(displayType) {
	var navDateLink = document.getElementById('nav-date-link');
	var navDateLinkText = document.getElementById('nav-date-inner');
	var navDateText = document.getElementById('nav-date-text');

	var navTopicLink = document.getElementById('nav-topic-link');
	var navTopicLinkText = document.getElementById('nav-topic-inner');
	var navTopicText = document.getElementById('nav-topic-text');
	var navArrow = document.getElementById('nav-arrow');
	
	// Topic view
	if (displayType=='topic') {
		if (currentPane != "article-main") {
			navTopicLink.style.display = 'none';
			navDateLink.style.display = 'none';
			navTopicText.style.display = 'none';
			navDateText.style.display = 'none';
			navArrow.style.display = 'none';
			

		} else { // If Main view
			navTopicLink.setAttribute("class", "nav-topic-link");
			navTopicLinkText.innerHTML = currentTopic;
			navTopicLink.style.display = 'inline';
			navArrow.style.display = 'inline';
		
			navTopicText.style.display = 'none';
			navDateLink.style.display = 'none';
			navDateText.style.display = 'none';
		}
		
	// Date view
	} else if (displayType=='date') {
		if (currentPane != "article-main") {
		
			navTopicLink.style.display = 'none';
			navDateLink.style.display = 'none';
			navTopicText.style.display = 'none';
			navDateText.style.display = 'none';
			navArrow.style.display = 'none';
			

		} else { // If Main view
			navDateLink.setAttribute("class", "nav-date-link");
			navDateLinkText.innerHTML=currentDateMain;
			navDateLink.style.display='inline';
			navArrow.style.display = 'inline';

			navDateText.style.display='none';
			navTopicText.style.display='none';
			navTopicLink.style.display='none';
			
			// Set month/year for date view
			var yearId=parseInt(currentYear) - parseInt(currentYearSelect);
			if (!isYearSelected(yearId)) {
				selectYear(yearId);
			}
			selectMonth(null,yearId,currentMonthSelect);
		}
	} else { // Should never get here
		navDateLink.style.display='none';
		navDateText.style.display='none';
		navTopicLink.style.display='none';
		navTopicText.style.display='none';
		navArrow.style.display = 'none';
	}

}

function showAll() {
	if (currentTab=='date') {
		selectCurrentMonth('0');
		selectPane('article-date');
	} else {
		resetTopics('');
		selectPane('article-topic');
	}
}

function setPager(prevId, nextId, topicId) {
	var prevLink = document.getElementById('prevLink');
	var nextLink = document.getElementById('nextLink');
	var prevLinkImg = document.getElementById('prevLinkImg');
	var nextLinkImg = document.getElementById('nextLinkImg');
	
	var tabParm = (currentTab=='date' ? '' : '&t='+topicId); 	

	if (nextId=='') {
		disableAnchor(nextLink, 'true');
		disableAnchor(nextLinkImg, 'true');
		nextLink.style.color="#cccccc";
		nextLink.name='nextOff';
		chgImg('nextArrow', 'images/articles_arrow_right_off.gif');
	} else if (nextId.length > 0) {
		nextLink.href='wellness-weekly.html?ma='+nextId+tabParm;
		nextLinkImg.href='wellness-weekly.html?ma='+nextId+tabParm;
	}
	
	if (prevId=='') {
		disableAnchor(prevLink, 'true');
		disableAnchor(prevLinkImg, 'true');
		prevLink.style.color="#cccccc";
		prevLink.name='prevOff';
		chgImg('prevArrow', 'images/articles_arrow_left_off.gif');
	} else if (prevId.length > 0) {
		prevLink.href='wellness-weekly.html?ma='+prevId+tabParm;
		prevLinkImg.href='wellness-weekly.html?ma='+prevId+tabParm;
	}
}

function setMatte(action) {
	var matteDiv = document.getElementById("matte");
	if (action=='on') {
		matteDiv.style.visibility="visible";
	} else {
		matteDiv.style.visibility="hidden";
	}
}












/** Wellness Weekly Archive **/

var monthDivs = ["m1", "m2", "m3"];
var contentDivs = ["c1", "c2", "c3"];
var yearDivs = ["y1", "y2", "y3"];
var yearLinks = ["year1", "year2", "year3"];
var monthIds = ["01", "02", "03", "04"];

var y1_count=0;
var m1_01_count=0;
var m1_02_count=0;
var m1_03_count=0;
var m1_04_count=0;

var y2_count=0;
var m2_01_count=0;
var m2_02_count=0;
var m2_03_count=0;
var m2_04_count=0;

var y3_count=0;
var m3_01_count=0;
var m3_02_count=0;
var m3_03_count=0;
var m3_04_count=0;

// Display Months and Article titles for selected year
function selectYear(divId){
	resetTopicsAll(); // Close all open topic divs
	
	var monthEL = document.getElementById(monthDivs[divId]); //m2
	//var contentEL = document.getElementById(contentDivs[divId]); //c2
	var yearLinkEL = document.getElementById(yearLinks[divId]); 
	var yearEL = document.getElementById(yearDivs[divId]); //y2
	var nextYearEL = getNextYearEL(divId);
	
	if(monthEL.style.display != "block"){
		monthEL.style.display = "block";
		//contentEL.style.display = "block";
		yearLinkEL.className = "arrow-down2";
		yearLinkEL.style.color = "#00458D";
		yearEL.className = "yearsubopen";
		
		//resetMonthLinks(divId);
		//selectCurrentMonth(divId);

	} else {
		monthEL.style.display = "none";
		//contentEL.style.display = "none";
		yearLinkEL.className = "arrow-up2";
		//yearLinkEL.style.color = "#F6842D";
		yearEL.className = "yearsub";
	}

	resetMonths('', divId); // Close any other open month divs
	resetYears(divId); // Close any other open year divs
	
}

// Check if year div is open or closed
function isYearSelected(divId){
	var monthEL = document.getElementById(monthDivs[divId]);
	return (monthEL.style.display == "block");
}

function getNextYearEL(divId) {
	var nextId = parseInt(divId) + parseInt(1);
	if (nextId>=yearDivs.length) { // If last year
		return;
	}
	
	var nextYearEL = document.getElementById(yearDivs[nextId]);
	//check if active
	while (nextYearEL.style.display == "none" && nextId++ < yearDivs.length) {
			nextYearEL=document.getElementById(yearDivs[nextId]);
	}
	return nextYearEL;
}

// Display all articles for month selected
function selectMonth(obj, divId, monthId) {
	//resetMonthLinks(divId);
	
	// Highlight selected month
	//obj.style.color="#00458D"; // link text
	//var selectedMonthTitleId = monthDivs[divId] + "_" + monthId;
	//var monthTitleEL = document.getElementById(selectedMonthTitleId);
	//monthTitleEL.style.background="#e5ecf3";
	
	// Change arrow for selected months
	var selectedMonthDiv = document.getElementById(monthDivs[divId]+"_"+monthId); //m2_01
	var selectedMonthLink = selectedMonthDiv.getElementsByTagName("a");
	var selectedMonthContentId = contentDivs[divId] + "_" + monthId; // c2_01
	var selectedContentDiv = document.getElementById(selectedMonthContentId); // c2_01	

	if (selectedMonthLink[0].className=="arrow-down2") {
		selectedMonthLink[0].className="arrow-up2";
		selectedContentDiv.style.display="none";
	} else {
		selectedMonthLink[0].className="arrow-down2";
		selectedContentDiv.style.display="block";
	}
	
	resetMonths(monthId, divId); // Close any other open date divs
}


function resetMonths(monthId, divId) {
	// Close any other open month divs
	for (var i = 0; i < monthIds.length; i++) {
		if (monthIds[i] != monthId) { // not selected
			// Hide month articles
			var curMonthDiv = document.getElementById(monthDivs[divId]+"_"+monthIds[i]); //m2_01
			var curMonthContentDiv = curMonthDiv.getElementsByTagName("div");
			curMonthContentDiv[0].style.display="none";
			// Change arrow to up
			var curMonthLink = curMonthDiv.getElementsByTagName("a");
			curMonthLink[0].className="arrow-up2";
		}
	}
}

function resetYears(divId) {
	// Close any other open year divs
	for(var i = 0; i < monthDivs.length; i++){
		monthEL = document.getElementById(monthDivs[i]);
		//check if div is open
		if(i != divId && monthEL.style.display == "block") {
			monthEL.style.display = "none";
		//	contentEL = document.getElementById(contentDivs[i]); 
		//	contentEL.style.display = "none";
			yearLinkEL = document.getElementById(yearLinks[i]);	
			yearLinkEL.className = "arrow-up2";
			//yearLinkEL.style.color = "#F6842D";
			yearEL = document.getElementById(yearDivs[i]);
			yearEL.className = "yearsub";		
			nextYearEL = getNextYearEL(i);
			}
	}
}

function resetDatesAll() {
	// Close all other open year-month divs
	for(var i = 0; i < monthDivs.length; i++){
		monthEL = document.getElementById(monthDivs[i]);
		//check if div is open
		if(monthEL.style.display == "block") {
			monthEL.style.display = "none";
			yearLinkEL = document.getElementById(yearLinks[i]);	
			yearLinkEL.className = "arrow-up2";
			yearEL = document.getElementById(yearDivs[i]);
			yearEL.className = "yearsub";		
			}
	}
}

// Reset month lightbox
function resetMonthLinks(divId) {
	var monthDiv = document.getElementById(monthDivs[divId]); //m2
	var monthLinks = monthDiv.getElementsByTagName("a");
	var monthTitleDivs = monthDiv.getElementsByTagName("div");
	
	for (var i = 0; i < monthLinks.length; i++) {
		//monthLinks[i].style.color="#f6842d";
		monthTitleDivs[i].style.background="transparent";		
	}
}

// Hide months and years with no content
function checkContent() {
	var currentYearDivId;
	
	for(var i = 0; i < yearDivs.length; i++){
		var yearEL = document.getElementById(yearDivs[i]);
		// var contentEL = document.getElementById(contentDivs[i]);
		var monthEL = document.getElementById(monthDivs[i]); //m2
	    var articleMonthDivs = monthEL.getElementsByTagName("div"); //m2_01, ..
	    var monthTitles = monthEL.getElementsByTagName("div");

		// Check year
	    var curYearCount=eval('y'+(i+1)+'_count');
		if (curYearCount==0) { // No articles for year
			yearEL.style.display = "none";
			continue;
		} 
		
		// Check months
		for (var j = 0; j < monthIds.length; j++) {
			var curMonthCount = eval('m'+(i+1)+'_'+monthIds[j]+'_count');
			if (curMonthCount==0) { // No articles for month group
				var curMonthContentDiv = document.getElementById(monthDivs[i] + "_" + monthIds[j]); // m2_01
				curMonthContentDiv.style.display="none";
			}
		}
	}
}

// Display articles for most current month of selected year
function selectCurrentMonth(divId) {
	var contentEL = document.getElementById(contentDivs[divId]); //c2
	var articleMonthDivs = contentEL.getElementsByTagName("div");
	if (articleMonthDivs.length > 1) {
		articleMonthDivs[1].className = "showElem";
		var monthId = articleMonthDivs[1].id.substring(3);
		var monthEL = document.getElementById(monthDivs[divId]+"_"+monthId);
		var monthLinkArr = monthEL.getElementsByTagName("a");
		if (monthLinkArr.length>0) {
			selectMonth(monthLinkArr[0], divId, monthId);
		}
	}
	contentEL.className="article-list-date";
}



/** Wellness Weekly Topic **/

var headerDivs 	= ["h1", "h2", "h3", "h4", "h5", "h6"];
var topicDivs = ["t1", "t2", "t3", "t4", "t5", "t6"];

// Display Article titles for selected topic
function selectTopic(headerId, contentId){
	var contentEL = document.getElementById(contentId);
	var headerEL = document.getElementById(headerId);
	
	if(contentEL.style.display != "block"){
		contentEL.style.display = "block";
		headerEL.className = "arrow-down";
		//headerEL.style.color = "#F6842D";
		// Set current topic for nav display
		if (headerEL.innerHTML.length>26) {
			currentTopic=headerEL.innerHTML.substr(0,25)+".";
		} else {
			currentTopic=headerEL.innerHTML;
		}
		//setNav('topic');
		
		//resetTopicLinks(divId);
		} else {
		contentEL.style.display = "none";
		headerEL.className = "arrow-up";
		headerEL.style.color = "#00458D";
		// Removed topic from nav display
		currentTopic='';
		//setNav('');
	}
	resetTopics(contentId);
	resetDatesAll(); // Close any open date divs
}

function resetTopics(contentId){
	// Close open topic divs
	for(var i = 0; i < maxNumberOfTopics; i++){
		contentEL = document.getElementById(topicDivs[i]);
		headerEL = document.getElementById(headerDivs[i]);
		//check if div is open
		if(contentId == '' || (topicDivs[i] != contentId && contentEL.style.display == "block")) {
			contentEL.style.display = "none";
			headerEL.className="arrow-up";
			headerEL.style.color = "#00458D";
		}
	}
}

function resetTopicsAll(){
	// Close open topic divs
	for(var i = 0; i <  maxNumberOfTopics; i++){
		contentEL = document.getElementById(topicDivs[i]);
		headerEL = document.getElementById(headerDivs[i]);
		//check if div is open
		if(contentEL.style.display == "block") {
			contentEL.style.display = "none";
			headerEL.className="arrow-up";
			headerEL.style.color = "#00458D";
		}
	}
}