function leescookie(naam) {
	var firstChar, lastChar;
	var allcookie = document.cookie;
	firstChar = allcookie.indexOf(naam);
	if(firstChar != -1) {
		firstChar += naam.length + 1;
		if (allcookie.substring(firstChar-1,firstChar)==';') return "";
	lastChar = allcookie.indexOf(';', firstChar);
	if(lastChar == -1) lastChar = allcookie.length;
	var result=allcookie.substring(firstChar, lastChar);
	if (result.indexOf('=') > -1) result="";
	return result;
	} else
	{
	return
	}
}