function Get_Cookie(name) {
   var start = document.cookie.indexOf(name+"=");
   var len = start+name.length+1;
   if ((!start) && (name != document.cookie.substring(0,name.length))) return 0;
   if (start == -1) return 0;
   var end = document.cookie.indexOf(";",len);
   if (end == -1) end = document.cookie.length;
   return unescape(document.cookie.substring(len,end));
}

function Set_Cookie(name,value,expires,path,domain,secure) {
    var cookieString = name + "=" +escape(value) +
       ( (expires) ? ";expires=" + expires.toGMTString() : "") +
       ( (path) ? ";path=" + path : "") +
       ( (domain) ? ";domain=" + domain : "") +
       ( (secure) ? ";secure" : "");
    document.cookie = cookieString;
}

function Delete_Cookie(name,path,domain) {
   if (Get_Cookie(name)) document.cookie = name + "=" +
      ( (path) ? ";path=" + path : "") +
      ( (domain) ? ";domain=" + domain : "") +
      ";expires=Thu, 01-Jan-70 00:00:01 GMT";
}

var today = new Date();
var zero_date = new Date(0,0,0);
today.setTime(today.getTime() - zero_date.getTime());
var cookie_expire_date = new Date(today.getTime() + (8 * 7 * 86400000));

function navaan(event)
{
	var ObjParentOpen = document.getElementById(event);
	if(ObjParentOpen.style.display == 'block')
		{
			ObjParentOpen.style.display = 'none';
		}
	else
	  {
	   if(ObjParentOpen.style.display == 'none')
		   {
			  ObjParentOpen.style.display = 'block';
		   }
    }
}

function openmenu()
{
  var tmpparent = Get_Cookie('eventparent');
  var tmpchild = Get_Cookie('eventchild');

  if( tmpparent == 0) tmpparent = "navstudioparent1";
  if( tmpchild == 0) tmpchild = "navstudiochild6";

	var ObjParentOpen = document.getElementById(tmpparent);
  ObjParentOpen.style.display = 'block';
	var ObjchildOpen = document.getElementById(tmpchild);
  ObjchildOpen.style.display = 'block';
}