var enablepersist="off" //Enable saving state of content structure using session cookies? (on/off)
var collapseprevious="yes" //Collapse previously open content when opening present? (yes/no)

var contractsymbol='<image src=http://www.naturesSunshine.com/contentserver/getmiscfile.axd?id=icon_plus.gif>' //HTML for contract symbol. For image, use: <img src="whatever.gif">
var expandsymbol='<image src=http://www.naturesSunshine.com/contentserver/getmiscfile.axd?id=icon_plus.gif>' //HTML for expand symbol.


if (document.getElementById)
{
    document.write('<style type="text/css">')
    document.write('.switchcontent{display:none;}')
    document.write('</style>')
}

function getElementbyClass(rootobj, classname)
{
    var temparray=new Array()
    var inc=0
    var rootlength=rootobj.length
    for (i=0; i<rootlength; i++){
    if (rootobj[i].className==classname)
    temparray[inc++]=rootobj[i]
    }
    return temparray
    }

    function sweeptoggle(ec){
    var thestate=(ec=="expand")? "block" : "none"
    var inc=0
    while (ccollect[inc]){
    ccollect[inc].style.display=thestate
    inc++
    }
    revivestatus()
}


function contractcontent(omit)
{
    var inc=0
    while (ccollect[inc]){
    if (ccollect[inc].id!=omit)
    ccollect[inc].style.display="none"
    inc++
    }
}

function expandcontent(curobj, cid)
{
    var spantags=curobj.getElementsByTagName("SPAN")
    var showstateobj=getElementbyClass(spantags, "showstate")
    if (ccollect.length>0){
    if (collapseprevious=="yes")
    contractcontent(cid)
    document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
    if (showstateobj.length>0){ //if "showstate" span exists in header
    if (collapseprevious=="no")
    showstateobj[0].innerHTML=(document.getElementById(cid).style.display=="block")? contractsymbol : expandsymbol
    else
    revivestatus()
    }
    }
}

function revivecontent()
{
    contractcontent("omitnothing")
    selectedItem=getselectedItem()
    selectedComponents=selectedItem.split("|")
    for (i=0; i<selectedComponents.length-1; i++)
    document.getElementById(selectedComponents[i]).style.display="block"
}

function revivestatus()
{
    var inc=0
    while (statecollect[inc]){
    if (ccollect[inc].style.display=="block")
    statecollect[inc].innerHTML=contractsymbol
    else
    statecollect[inc].innerHTML=expandsymbol
    inc++
    }
}

function get_cookie(Name)
{ 
    var search = Name + "="
    var returnvalue = "";
    if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { 
    offset += search.length
    end = document.cookie.indexOf(";", offset);
    if (end == -1) end = document.cookie.length;
    returnvalue=unescape(document.cookie.substring(offset, end))
    }
    }
    return returnvalue;
}

function getselectedItem()
{
    if (get_cookie(window.location.pathname) != ""){
    selectedItem=get_cookie(window.location.pathname)
    return selectedItem
    }
    else
    return ""
}

function saveswitchstate()
{
    var inc=0, selectedItem=""
    while (ccollect[inc]){
    if (ccollect[inc].style.display=="block")
    selectedItem+=ccollect[inc].id+"|"
    inc++
    }

    document.cookie=window.location.pathname+"="+selectedItem
}

function do_onload()
{
    uniqueidn=window.location.pathname+"firsttimeload"
    var alltags=document.all? document.all : document.getElementsByTagName("*")
    ccollect=getElementbyClass(alltags, "switchcontent")
    statecollect=getElementbyClass(alltags, "showstate")
    if (enablepersist=="on" && ccollect.length>0){
    document.cookie=(get_cookie(uniqueidn)=="")? uniqueidn+"=1" : uniqueidn+"=0" 
    firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0 //check if this is 1st page load
    if (!firsttimeload)
    revivecontent()
    }
    if (ccollect.length>0 && statecollect.length>0)
    revivestatus()
}

if (window.addEventListener)
    window.addEventListener("load", do_onload, false)
else if (window.attachEvent)
    window.attachEvent("onload", do_onload)
else if (document.getElementById)
    window.onload=do_onload

if (enablepersist=="on" && document.getElementById)
    window.onunload=saveswitchstate