function confirmSubmit() 
{
var agree=confirm("Weet u het zeker?");
if (agree)
	return true ;
else
	return false ;
}

var menuitems = new Array();
var menu_opened = new Array();
var menu_closed = new Array();

function menuitem_click(myId) {
	if (menu_opened[myId] != undefined) {
		if (menu_opened[myId] == true) {
			close_subitems(myId);
		} else {
			open_subitems(myId);
		}
	} else if (menu_closed[myId] != undefined) {
		if (menu_closed[myId] == true) {
			open_subitems(myId);
		} else {
			close_subitems(myId);
		}
	} else { // is undefined, so should be closed
		if (menuitems[myId] != undefined) {
			open_subitems(myId);
		}
	}
}

function open_subitems(parentId) {
	if (document.getElementById('menuitem'+parentId)) {
		
		menu_opened[parentId] = true;
		menu_closed[parentId] = false;
		
		document.getElementById('menuitem'+parentId).className = document.getElementById('menuitem'+parentId).className.replace(/folder_closed/i, "folder_opened");
		
		for (var n=0; n<menuitems[parentId].length; n++) {
			if (document.getElementById('menuitem'+menuitems[parentId][n])) {
				document.getElementById('menuitem'+menuitems[parentId][n]).style.display = 'block';
			}
		}
	}
	set_cookie();
}

function close_subitems(parentId) {
	if (document.getElementById('menuitem'+parentId)) {
		
		menu_opened[parentId] = false;
		menu_closed[parentId] = true;
		
		document.getElementById('menuitem'+parentId).className = document.getElementById('menuitem'+parentId).className.replace(/folder_opened/i, "folder_closed");
		
		for (var n=0; n<menuitems[parentId].length; n++) {
			if (document.getElementById('menuitem'+menuitems[parentId][n])) {
				document.getElementById('menuitem'+menuitems[parentId][n]).style.display = 'none';
			}
			if (menu_opened[ menuitems[parentId][n] ] == true || menu_closed[ menuitems[parentId][n] ] === true) {
				close_subitems( menuitems[parentId][n] );
			}
		}
	}
	set_cookie();
}

function set_cookie() {
	var str_opened = '';
	var str_closed = '';
	
	for (var i in menu_opened) {
		if (menu_opened[i] == true) {
			str_opened += i+',';
		}
	}
	for (var i in menu_closed) {
		if (menu_closed[i] == true) {
			str_closed += i+',';
		}
	}
	
  var cookie_string = "menu_opened=" + escape ( str_opened );
  document.cookie = cookie_string;
  cookie_string = "menu_closed=" + escape ( str_closed );
  document.cookie = cookie_string;
}