function SetCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue)
                 + ";expires="+expire.toGMTString();
}

function ReadCookie(cookieName) {
 var theCookie=""+document.cookie;
 var ind=theCookie.indexOf(cookieName);
 if (ind==-1 || cookieName=="") return ""; 
 var ind1=theCookie.indexOf(';',ind);
 if (ind1==-1) ind1=theCookie.length; 
 return unescape(theCookie.substring(ind+cookieName.length+1,ind1));
}

function subgroups_my(obj)
{
    var nested = document.getElementById(obj.id+"_sub");
    var c = ReadCookie('open');

    if(nested.style.display=='none')
    {
        nested.style.display='block';
        SetCookie ('open', nested.id, '5');
    }
    else
    {
        nested.style.display='none';
        SetCookie ('open', nested.id, '-1');
    }

}

function _open() {
    var c = ReadCookie('open');
    var nested = document.getElementById(c);
    
    if (c != '') 
    {
        nested.style.display='block';
    }
}

function sub_subgroups_my(obj)
{
    var nested = document.getElementById(obj.id+"_sub");
//alert(nested);

    if(nested.style.display=='none')
    {
        nested.style.display='block';
    }
    else
    {
        nested.style.display='none';
    }

}