var SIDString = '';

function getRandomLetter() {
	return String.fromCharCode(getRandom(65, 90));
}

function getRandom(lowerBound, upperBound) {
	return Math.floor((upperBound - lowerBound + 1) * Math.random() + lowerBound);
}

function SetSID()
{
	if (SIDString.length > 0)
	{
		return SIDString;
	}
	sidc = 0;
	while (sidc < 32)
	{
		SIDString = SIDString + getRandomLetter();
		sidc++;
	}
	return SIDString;
}

function GetMailCampURL()
{
  var url = "http://www.mailcamp.eu/clients/demo/admin/resources/form_designs/captcha/index.php?c=" + getRandom(1,1000)+ "&ss=" + SetSID();
  return url;
}

function CheckMultiple5(frm, name) {
	for (var i=0; i < frm.length; i++)
	{
		fldObj = frm.elements[i];
		fldId = fldObj.id;
		if (fldId) {
			var fieldnamecheck=fldObj.id.indexOf(name);
			if (fieldnamecheck != -1) {
				if (fldObj.checked) {
					return true;
				}
			}
		}
	}
	return false;
}
function CheckForm5(f) {
	if (f.email.value == "") {
		alert("Geef een geldig e-mail adres op.");
		f.email.focus();
		return false;
	}
	if (f.captcha.value == "") {
		alert("Voer de weergegeven code in.");
		f.captcha.focus();
		return false;
	}
	return true;
}