//Added constants for the menu Iframes, needs to match the style sheet
var MENU_HEIGHT = 24;
var MENU_PADDING = 10;
var MENU_HEIGHT_IE5 = 19;
var MENU_PADDING_IE5 = 10;
var MENU_TOP_MARGIN = 0;

var menuIsIE = (navigator.userAgent.toLowerCase().indexOf("msie") != -1);
var menuIsV3 = (menuIsIE && parseInt(navigator.appVersion) < 4);
var menuIsV5 = (menuIsIE && navigator.userAgent.toLowerCase().indexOf("msie 5.") != -1);
var menuIsV4 = (menuIsIE && navigator.userAgent.toLowerCase().indexOf("msie 4.") != -1);
var isIE6Up = (menuIsIE && !menuIsV4 && !menuIsV5 && !menuIsV3);

if (!isIE6Up && menuIsIE)
{
	MENU_HEIGHT = MENU_HEIGHT_IE5;
	MENU_PADDING = MENU_PADDING_IE5;
}

var LOC_NAME_LENGTH = 42;

function startList() 
{
	// wire up language flipper
	var flipper = document.getElementById("flipper");
	if(flipper != null)
	{
		flipper.onclick = flipperClick;
	}
	
	// Remove menu when language set to Spanish
	var language =  getCookieVal("Language")
	if(window.location.pathname.indexOf("http://stage2.mediaroom.com/es/") > 0)
	{

		var footerEn = document.getElementById("footer");
		if(footerEn != null)
			footerEn.style.display = "none";
		var footerEs = document.getElementById("footerEs");
		if(footerEs != null)
			footerEs.style.display = "block";
	}
	
	if(document.getElementById && language != 'es')
	{
		var menuCss;
		var selectedMenu;
		var menuBackground;
		var menu = document.getElementById("topMenu");
		 
		// add programming item if missing
		navItems = menu.getElementsByTagName("li");
		if(navItems.length > 0 && navItems.length < 9)
		{
			var programmingLi = document.createElement("li");
			programmingLi.innerHTML = '<a index="1" hbxrootmenuid="//Programming" hbxrootmenuorientation="down"><img src="http://www.comcast.com/images/topMenu/Programming.gif" width="108" height="27" alt="Programming" /></a>'
			programmingLi.className = 'ProgrammingItem';
			menu.insertBefore(programmingLi, navItems[2]);
			navItems[0].getElementsByTagName("img")[0].width= 108;
			navItems[1].getElementsByTagName("img")[0].width= 108;
			navItems[2].getElementsByTagName("img")[0].width= 108;
			navItems[3].getElementsByTagName("img")[0].width= 108;
			navItems[4].getElementsByTagName("img")[0].width= 108;
			navItems = menu.getElementsByTagName("li");
			
		}
		
		for (var i=0; i < navItems.length; i++)
		{
			node = navItems[i];
			var link = node.getElementsByTagName("a")[0];
			if(link != null)
				link.setAttribute("index", i);
			if (menuIsIE && !isIE6Up)
			{
				for (var n=0; n < document.styleSheets.length; n++)
				{
					menuCss = document.styleSheets[n].href.match(/(comcast_)(\w+)(\.css$)/);
					if (menuCss)
					{
						selectedMenu = menuCss[2].toLowerCase();
						var menuName = node.className.toLowerCase();
						if (menuName.indexOf(selectedMenu) > -1)
						{
							menuBackground = document.styleSheets[n].cssText.match(/(BACKGROUND-COLOR: )(#[\w\d]+)/);
							if (menuBackground)
								node.style.backgroundColor = menuBackground[2];
							//node.style.marginBottom = "1px";
							MENU_TOP_MARGIN = 42;
							node.getElementsByTagName("img")[0].style.marginBottom = "1px";
							break;
						}
					}
					
				}
			}
//			if (node.id == "primarySearch")
//			{
//				var subNode = document.getElementById("menuSearchGo");
//				subNode.onmouseover = overItem;
//				subNode.onmouseout = outItem;		
//			}
//			else
//			{
				node.onmouseover = overItem;
				node.onmouseout = outItem;		
//			}
		}
	}
}

function setHeaders()
{
    if(document.getElementById)
    {
        var locHeader = document.getElementById("locationInfo");
        var locHeaderEs = document.getElementById("locationInfoEs");
        var locCookie = getCookieVal("Serviceability");
        if(locCookie.length > 0)
        {
			if(GetCookie("Serviceability","Zip") != false)
			{
				if(window.location.pathname.indexOf("http://stage2.mediaroom.com/es/") > 0)
				{
					//This should only be valid for CM
					//the locationInfoEs div does not exist in non-CM pages.
					locHeaderEs.style.display = "block";
					var zipHeader = document.getElementById("zipInfoEs");
					zipHeader.innerHTML = get5DigitZip();
				}
				else
				{
					locHeader.style.display = "block";
					var zipHeader = document.getElementById("zipInfo");
					zipHeader.innerHTML = get5DigitZip();
				}
            }
        }
        
        var accountHeader = document.getElementById("myAccountInfo");
        var accountCookie = getCookieVal("Session");
        if(accountCookie.length > 0)
        {
			if(GetCookie("Session","Hash") != false)
				accountHeader.style.display = "block";
        }
    }
}

function get5DigitZip()
{
	//Substring is done to remove the +4 digit zip code returned from CSG
	var zip = GetCookie("Serviceability","Zip");
	if(zip != null && zip != "")
		return zip.substring(0,5);
	return "";
}

overItem = function(evt)
{	
	evt = (evt) ? evt : ((window.event) ? window.event : null);
	
	var targetElt = this;
//	if (this.id == "menuSearchGo")
//	{
//		targetElt = this.parentElement.parentElement;
//		alert("targetElt="+targetElt.id);
//	}
	//var log = document.getElementById("logarea");
	//if (log.innerHTML.length > 400) log.innerHTML="";
	//log.innerHTML=log.innerHTML+"<br/>&lt;" + targetElt.tagName + targetElt.className;
	
	var oLink = targetElt.getElementsByTagName("a")[0];
	if( oLink && oLink.getAttribute("index") != null)
	{
		var index = oLink.getAttribute("index")
		
		// Create child lists if needed
		if(index < aMenu.length && targetElt.getElementsByTagName("ul").length == 0)
		{
			InsertChildren(targetElt, index);			
		}
	}
	
	if (targetElt.parentNode.id == "topMenu")
	{
		var iframe = this.getElementsByTagName("iframe")[0];
		if (iframe) 
		{
			iframe.style.visibility = "visible";
		}
		else
		{	
			iframe = document.createElement("iframe");
			//iframe.setAttribute("src", window.location.protocol + "//" + window.location.hostname + "/images/dot.gif");
		        iframe.setAttribute("src", "../../media.corporate-ir.net/media_files/irol/14/147565/images2006/dot.gif");
			iframe.setAttribute("scrolling", "no");
			iframe.setAttribute("frameborder", "0");
			iframe.style.zIndex="0";
			iframe.style.borderWidth="0";

			var firstC = this.firstChild;
			while(firstC.nodeName=="#text" && firstC.nextSibling != null)
				firstC = firstC.nextSibling;
			if (firstC.nodeName=="#text")
				firstC = null;
			
			if (firstC != null && firstC.nodeName.toUpperCase() == "A") 
			{
				var ul = this.getElementsByTagName("ul")[0].childNodes.length; 
				iframe.width = this.offsetWidth*2 - 13;
				iframe.height = MENU_HEIGHT*ul+MENU_PADDING;
			}
			else
			{
				iframe.width = 0;
				iframe.height = 0;
			}
			if (MENU_TOP_MARGIN > 0)
				iframe.style.top = MENU_TOP_MARGIN + "px";
			iframe.style.position = "absolute";
			this.appendChild(iframe);
		}
	}
	
	// IE hack for rollover state
	if(document.all && document.getElementById)
	{
		targetElt.className+=" sfhover";
	}
}

function getLeftRelBody(item) 
{
	if (item.parentNode.tagName == "body")
		return document.body.offsetLeft;
	return item.offsetLeft + getLeftRelbody(item.parentNode);
}

function getTopRelBody(item) 
{
	if (item.parentNode.tagName == "body")
		return document.body.offsetTop;
	return item.offsetTop + getTopRelBody(item.parentNode);
}

outItem = function()
{

	var targetElt = this;
//	if (this.id == "menuSearchGo")
//	{
//		targetElt = this.parentElement.parentElement;
//		alert("targetElt="+targetElt.id);
//	}
	//var log = document.getElementById("logarea");
	//if (log.innerHTML.length > 400) log.innerHTML="";
	//log.innerHTML=log.innerHTML+"<br/>&gt;" + targetElt.tagName + targetElt.className;

	// IE hack for rollover state
	if(document.all && document.getElementById)
	{
		targetElt.className=targetElt.className.replace(new RegExp(" sfhover\\b"), "");
	}
	var iframe = this.getElementsByTagName("iframe")[0];
	if (iframe)
	{
		//iframe.style.display = "none";
		iframe.style.visibility = "hidden";
	}
}


// Add list children to uls
function InsertChildren(ListItem, Index)
{
	var ul = document.createElement("ul");
	ul.innerHTML = aMenu[Index];
	ul.style.zIndex = "99";
	ListItem.appendChild(ul);
}

var addButtonRollover = function () {
	var aImg = document.getElementsByTagName("img");
	for (var i = 0; i < aImg.length; i++)
	{
		if(aImg[i].className == "button")
		{
			aImg[i].onmouseover = buttonRollOn;
			aImg[i].onmouseout = buttonRollOff;
		}
	}
}

var buttonRollOn = function() {
	var sOrgSrc = this.getAttribute("src");
	var sNewSrc = sOrgSrc.substring(0, sOrgSrc.lastIndexOf("_")) + "_over.gif";
	this.setAttribute("orgSrc", sOrgSrc);
	this.setAttribute("src", sNewSrc);
}

var buttonRollOff = function() {
	var sOrgSrc = this.getAttribute("orgSrc");
	this.setAttribute("src",sOrgSrc);
}

/*  Explicit handlers for use with the onmouseover and onmouseout events.  Don't use unless you have to.  */
function buttonRollOnEx(obj)
{
    var sOrgSrc = obj.getAttribute("src");
	var sNewSrc = sOrgSrc.substring(0, sOrgSrc.lastIndexOf("_")) + "_over.gif";
	obj.setAttribute("orgSrc", sOrgSrc);
	obj.setAttribute("src", sNewSrc);
}

function buttonRollOffEx(obj)
{
    var sOrgSrc = obj.getAttribute("orgSrc");
	obj.setAttribute("src",sOrgSrc);
}

/*  Tabs rollover functions */
function initTabs(ulTabs)
{
	if(document.getElementById)
	{
		tabItems = ulTabs.getElementsByTagName("li");;
		for (var i=0; i < tabItems.length; i++)
		{
			node = tabItems[i];
			node.onmouseover = overTab;
			node.onmouseout = outTab;
			node.onclick = selectTab;
		}
	}
}

overTab = function(evt)
{	
	evt = (evt) ? evt : ((window.event) ? window.event : null);
	
	// IE hack for rollover state
	if(document.all && document.getElementById)
	{
		addClassToNode(this, "sfhover");		
	}
}

outTab = function()
{
	// IE hack for rollover state
	if(document.all && document.getElementById)
	{
		removeClassFromNode(this, "sfhover");
	}
}

selectTab = function()
{
	var ulTabs;
	if(arguments.length > 0  && "tagName" in arguments[0])
	{
		ulTabs = arguments[0].parentNode;
	}
	else
	{
		ulTabs = this.parentNode;
		
	}
	var tabItems = ulTabs.getElementsByTagName("li");
	var nCurrentIndex = 0;
	for (var i=0; i < tabItems.length; i++)
	{
		node = tabItems[i];
		removeClassFromNode(node, "selected");
		if(node == this)
			nCurrentIndex = i;
	}
	if(arguments.length > 0  && "tagName" in arguments[0])
	{
		addClassToNode(arguments[0], "selected");
	} else {
		addClassToNode(this, "selected");		
	}
	
	var aTabViews = new Array();
	var aAnchorViews = new Array();
	
	// Load an array of the tab view divs
	var leftSection = document.getElementById("leftSection");
	var leftDivs = leftSection.getElementsByTagName("div");
	var y = 0; 
	var z = 0;
	for(var i = 0; i < leftDivs.length; i++)
	{
		var div = leftDivs[i];
		if(div.className.indexOf("tabView") > -1)
		{
			// hide all tab views
			removeClassFromNode(div,"selected");
			aTabViews[y] = div;
			y++;
		}
		// hide all anchor tag rows
		if(div.className.indexOf("lobAnchorHeader") > -1)
		{
			div.style.display = "none";
		}
	}
	if(aTabViews[nCurrentIndex])
		addClassToNode(aTabViews[nCurrentIndex],"selected");
	
	// display the anchor tag row for the current tab.
	var anchorDiv = document.getElementById("lobAnchorHeader" + this.id);
	if(anchorDiv != null)
		anchorDiv.style.display = "block";
}

/* End tab functions */




/* Search functions */

function LocalizeSearch(searchForm)
{
    var id = getCookieVal('CorpID');
    if(id > 1)
    {
        searchForm.corp.value = id;
        searchForm.LevelNum.value = 4;
        searchForm.LevelId.value = id;           
    }
}

function SearchSite()
{
	var form = document.getElementById("menuSearch");
	form.submit();
}

function SearchTV(initialView)
{
	// Currently called from:
	// 1. Menu Search dropdown (both templates and dynamic pages, and auto generated site map)
	// 2. Explore Flash movie callback
	// 3. Channel Lineup page
	// 4. Secondary Menu Nav "Whats On" (both templates and dynamic pages, and auto generated site map)
	// initialView can be schedule-grid, browse, or search
	var formSearch= document.getElementById("menuSearch");
	var form = document.getElementById("tvSearch");
	var zip = get5DigitZip();
	if (zip != false)
		form.zipcode.value = zip;
	//form.action = "http://tvplanner.comcast.net";
	if (initialView)	// form value defaults to "search"
		form.initView.value = initialView;
	else
		form.initView.value = "search";
	form.method="GET";
	if (formSearch.q.value != "Search")	// "Search" is in the text box by default
		form.searchTerm.value = formSearch.q.value;
	form.target="_blank";
	form.submit();
}

/* End Search funcitons */

/* Flipper */
function flipperClick()
{
	var flipperSelect = document.getElementById("flipperSelect");
	if(flipperSelect.style.display != "block")
	{
		flipperSelect.style.display = "block";
	}
	else
	{
		flipperSelect.style.display = "none";
	}
}

function setLanguage(LanguageCode)
{
	SetCookie("Language", false, LanguageCode, false, true);
	var flipperSelect = document.getElementById("flipperSelect");
	flipperSelect.style.display = "none";
	flipperSelect.style.zindex = 250;
	//window.location.reload();
}

function displayMenuForLanguage()
{
	var menu = document.getElementById("topMenu");
	// Remove menu when language set to Spanish
//	var language =  getCookieVal("Language")
//	if(window.location.pathname.indexOf("/" + language + "/") > 0)
	if(window.location.pathname.indexOf("http://stage2.mediaroom.com/es/") > 0)
	{
		menu.style.display = 'none';
	}
	else
	{
		menu.style.display = 'block';
	}
}