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

function showhide(el)
{
  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(minus.png)":"url(plus.png)";
}

function writeCookie()
{ // 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.getElementsByTagName("li").length;q++){
    if(temp.getElementsByTagName("li")[q].childNodes.length>0){
      if(temp.getElementsByTagName("li")[q].childNodes[0].nodeName=="SPAN" && temp.getElementsByTagName("li")[q].getElementsByTagName("ul").length>0){
        cookieArray[cookieArray.length]=(temp.getElementsByTagName("li")[q].getElementsByTagName("ul")[0].style.display=="block");
      }
    }
  }
  document.cookie="state="+cookieArray.join(",")+";expires="+new Date(new Date().getTime() + 365*24*60*60*1000).toGMTString();
}