// JavaScript Document

var temp2=new Array();
var temp=new Array();

var cookieArray, cookieArray2, cookieCount;
function initiate(numer){

  cookieCount=0;
  if(document.cookie){
    cookieArray=document.cookie.split(";");
    cookieArray2=new Array();
    for(i in cookieArray){
      cookieArray2[cookieArray[i].split("=")[0].replace(/ /g,"")]=cookieArray[i].split("=")[1].replace(/ /g,"");
    }
  }
  cookieArray=(document.cookie.indexOf("state"+numer+"=")>=0)?cookieArray2["state"+numer].split("-"):new Array();
  temp[numer]=document.getElementById("containerul"+numer);
  for(var o=0;o<temp[numer].getElementsByTagName("li").length;o++){
    if(temp[numer].getElementsByTagName("li")[o].getElementsByTagName("ul").length>0){
      temp2[numer] = document.createElement("span");
      temp2[numer].className = "symbols";
      temp2[numer].style.backgroundImage = (cookieArray.length>0)?((cookieArray[cookieCount]=="true")?"url(gfx/minus.png)":"url(gfx/plus.png)"):"url(gfx/plus.png)";
      temp2[numer].onclick=function(){
        showhide(this.parentNode,numer);
        writeCookie(numer);
      }
      temp[numer].getElementsByTagName("li")[o].insertBefore(temp2[numer],temp[numer].getElementsByTagName("li")[o].firstChild)
      temp[numer].getElementsByTagName("li")[o].getElementsByTagName("ul")[0].style.display = "none";
      if(cookieArray[cookieCount]=="true"){
        showhide(temp[numer].getElementsByTagName("li")[o],numer);
      }
      cookieCount++;
    }
    else{
      temp2[numer] = document.createElement("span");
      temp2[numer].className = "symbols";
      temp2[numer].style.backgroundImage = "url(gfx/page.png)";
      temp[numer].getElementsByTagName("li")[o].insertBefore(temp2[numer],temp[numer].getElementsByTagName("li")[o].firstChild);
    }
  }
}

function showhide(el,numer){
  el.getElementsByTagName("ul")[0].style.display=(el.getElementsByTagName("ul")[0].style.display=="block")?"none":"block";
  el.getElementsByTagName("span")[0].style.backgroundImage=(el.getElementsByTagName("ul")[0].style.display=="block")?"url(gfx/minus.png)":"url(gfx/plus.png)";
  
}

function writeCookie(numer){ // Runs through the menu and puts the "states" of each nested list into an array, the array is then joined together and assigned to a cookie.
  cookieArray=new Array()
  for(var q=0;q<temp[numer].getElementsByTagName("li").length;q++){
    if(temp[numer].getElementsByTagName("li")[q].childNodes.length>0){
      if(temp[numer].getElementsByTagName("li")[q].childNodes[0].nodeName=="SPAN" && temp[numer].getElementsByTagName("li")[q].getElementsByTagName("ul").length>0){
        cookieArray[cookieArray.length]=(temp[numer].getElementsByTagName("li")[q].getElementsByTagName("ul")[0].style.display=="block");
      }
    }
  }
  document.cookie="state"+numer+"="+cookieArray.join("-")+";expires="+new Date(new Date().getTime() + 365*24*60*60*1000).toGMTString();
 
}