function getCookieVal (offset) {
	var endstr = document.cookie.indexOf(";", offset);  
	if (endstr == -1) {
		endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
}
function getCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;	
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) {
			return getCookieVal(j);
		}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) {
			break;
		}
	}
	return '';
}
function showArray(ar) {
	text = '';
	for (key in ar) {
		text += '[' + key + '] = ' + ar[key] + '\n';
	}
	alert(text);
}

// document.cookie = 'klapper=; expires=-1';

klapperTxt = getCookie('klapper');
klapper = new Array();

function klap(h,p,w) {
	if (document.getElementById) {
		div = document.getElementById('div_' + h + '_' + p);
		img = document.getElementById('img_' + h + '_' + p);
		if (div.style.display == 'none') {
			div.style.display = 'block';
			img.src   = 'images/min.gif';
			img.title = '';
			img.alt   = '-';
			
			if (w == '') {
				klapper[klapper.length] = h + '_' + p;
			}
		} else {
			div.style.display = 'none';
			img.src = 'images/plus.gif';
			img.title = '';
			img.alt   = '+';
			
			if (w == '') {
				for (key in klapper) {
					if (klapper[key] == h + '_' + p) {
						klapper[key] = '';
						break;
					}
				}
			}
		}
		if (w == '') {
			klapperTxt = '';
			for (key in klapper) {
				if (klapper[key] != '') {
					klapperTxt += klapper[key] + ',';
				}
			}
			if (klapperTxt.substring(klapperTxt.length - 1, klapperTxt.length) == ',') {
				klapperTxt = klapperTxt.substring(0, klapperTxt.length - 1);
			}
			document.cookie = 'klapper=' + klapperTxt + '; domain=www.cacaochocolade.nl';
		}
	} else {
		self.location.href = 'main.php?p=sitemap&h=' + h + '&g=' + p;
	}
}

if (klapperTxt != '') {
	klapper = klapperTxt.split(',');
	for (key in klapper) {
		h = klapper[key].substring(0, klapper[key].indexOf('_'));
		p = klapper[key].substring(klapper[key].indexOf('_') + 1, klapper[key].length);
		klap(h,p,'initialize');
	}
}