/***********************************************
* Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated April 2nd, 2005.
* Visit http://www.dynamicdrive.com/ for full source code
* http://www.dynamicdrive.com/dynamicindex17/switchcontent.htm
***********************************************/

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

var contractsymbol='<img src="http://www.findacode.com/images/details-hide.png" alt="Hide Details" align="left"/>'; // "- " HTML for contract symbol. For image, use: <img src="whatever.gif">
var expandsymbol='<img src="http://www.findacode.com/images/details-show.png" alt="Show Details" align="left"/>'; // "+ " 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;
  if (ccollect) while (ccollect[inc]){
    ccollect[inc].style.display=thestate;
    inc++;
  }
  revivestatus();
}


function contractcontent(omit){
  var inc=0;
  if (ccollect) 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;
  }
  return "";
}

function saveswitchstate(){
var inc=0, selectedItem=""
if (ccollect) 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;