var expDays = 30;
var exp = new Date();
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

// ********************* General Cookie handling *********************
// Cookie Functions - Second Helping (21-Jan-96)
// Written by: Bill Dortch, hIdaho Design <bdortch@netw.com>
// The following functions are released to the public domain.

function getCookie(sCookie, sName) {
	var nameEQ = sName + "=";
	var ca = sCookie.split(';');
	for (var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0)
			return unescape(c.substring(nameEQ.length,c.length));
	}
	return null;
}
function setCookie (name, value) {
	var argv = setCookie.arguments; 
	var argc = setCookie.arguments.length; 
	var expires = (argc > 2) ? argv[2] : null; 
	var path = (argc > 3) ? argv[3] : null; 
	var domain = (argc > 4) ? argv[4] : null; 
	var secure = (argc > 5) ? argv[5] : false; 
	document.cookie = name + "=" + escape (value) + 
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
		((path == null) ? "" : ("; path=" + path)) + 
		((domain == null) ? "" : ("; domain=" + domain)) +
		((secure == true) ? "; secure" : "");
}

function deleteCookie (name) {
	var exp = new Date();
	exp.setTime (exp.getTime() - 1); 
	// This cookie is history 
	var cval = getCookie (name); 
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

function checkinput(f) {
	var v = "";
	var el;
	var d;
	for (var i=1; i<=numVragen; i++) {
		el = document.getElementById('vraag'+i+'J');
		if (el && el.checked) {
			d = document.getElementById('div'+(i+1));
			d.style.visibility='visible';
			v = v + "J"
		} else {
			el = document.getElementById('vraag'+i+'N');
			if (el && el.checked) {
				v = v + "N"
				d = document.getElementById('div'+(i+1));
				d.style.visibility='visible';
			} else {
				v = v + " "
			}
		}
	}
	vragen = v;
	sdfjkh;
	setCookie("vragen", vragen, exp, '/')
	return true;     
}

var vragen;

function init() {
	vragen = getCookie("vragen");
	if (vragen) {
		for (var i = 1; i<=numVragen; i++) {
			if (vragen.charAt(i-1)=='J') {
				document.getElementById('vraag'+i+'J').checked = true;
			} else if (vragen.charAt(i-1)=='N') {
				document.getElementById('vraag'+i+'N').checked = true;
			}
		}
	}
	checkinput(document.getElementById('myform'));
}