var menu, menu2, cookieA,cookieA2, cookieC;

//global variables



// if(document.getElementById("categories")=="true")



function menu_initiate()

{

  cookieC=0;



  if(document.cookie)

  {

    cookieA=document.cookie.split(";");

    cookieA2=new Array();

    for(i in cookieA)

    {

      cookieA2[ cookieA[i].split("=")[0].replace(/ /g,"") ] = cookieA[i].split("=")[1].replace(/ /g,"");

    }

  }



  cookieA = ( document.cookie.indexOf("state=")>=0 ) ? cookieA2["state"].split(",") : new Array();

 

  menu = document.getElementById("categories");



  for( var o=0; o< menu.getElementsByTagName("li").length;o++)

  {

    if(menu.getElementsByTagName("li")[o].getElementsByTagName("ul").length>0)

    {

      menu2 = document.createElement("span");

      menu2.className = "images";

      menu2.style.backgroundImage = (cookieA.length>0)?((cookieA[cookieC]=="true")? "url('./images/up.gif')":"url('./images/down.gif')"):"url('./images/down.gif')";

      menu2.style.cursor = "pointer";

      menu2.onclick = function()

      {

        show_hide(this.parentNode);

        wCookie();//save state

      }



      menu.getElementsByTagName("li")[o].insertBefore(menu2,menu.getElementsByTagName("li")[o].firstChild)

      menu.getElementsByTagName("li")[o].getElementsByTagName("ul")[0].style.display = "none";

      

     if(cookieA[cookieC]=="true")

      {

        show_hide(menu.getElementsByTagName("li")[o]);

      }

      cookieC++;

    }

    else

    {

      menu2 = document.createElement("span");

      menu2.className = "images";

      menu2.style.backgroundImage = "url('./images/sub.gif')";

      menu.getElementsByTagName("li")[o].insertBefore(menu2,menu.getElementsByTagName("li")[o].firstChild);

    }

  }

}



function show_hide(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('./images/up.gif')":"url('./images/down.gif')";

}



function wCookie()

{ 

  cookieA=new Array()

  for( var c = 0;c < menu.getElementsByTagName("li").length; c++ ) 

  {

    if( menu.getElementsByTagName("li")[c].childNodes.length>0 )

    {

      if ( menu.getElementsByTagName("li")[c].childNodes[0].nodeName == "SPAN" && menu.getElementsByTagName("li")[c].getElementsByTagName("ul").length>0 )

      {

        cookieA[ cookieA.length ] = ( menu.getElementsByTagName("li")[c].getElementsByTagName("ul")[0].style.display=="block" );

      }

    }

  }

  document.cookie="state="+cookieA.join(",")+";expires="+new Date(new Date().getTime() + 365*24*60*60*1000).toGMTString();

  //set cookie expiration to 1 year

}