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;
}

var url = "http://www.web365.com.au/web365_systems/newsletter/admin/resources/form_designs/captcha/index.php?c=" + getRandom(1,1000)+ "&ss=" + SetSID();
		document.write("<img src='" + url + "' alt='img'/>");



function CheckMultiple51(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 CheckForm51(f) {
if (f.email.value == "") {
	alert("Please enter your email address.");
	f.email.focus();
	return false;
}

			if (f.format.selectedIndex == -1) {
				alert("Please choose a format to receive your email campaigns in");
				f.format.focus();
				return false;
			}
		
	if (f.captcha.value == "") {
		alert("Please enter the security code shown");
		f.captcha.focus();
		return false;
	}

var fname = "CustomFields_4_51";
var fld = document.getElementById(fname);
if (fld.value == "") {
	alert("Please enter a value for field First Name");
	fld.focus();
	return false;
}

var fname = "CustomFields_5_51";
var fld = document.getElementById(fname);
if (fld.value == "") {
	alert("Please enter a value for field Surname");
	fld.focus();
	return false;
}

var fname = "CustomFields_11_51";
var fld = document.getElementById(fname);

CheckNum = parseInt(fld.value);
if(fld.value != "" && isNaN(CheckNum)) {
	alert("Please enter a numeric value for field Home Phone");
	fld.select();
	fld.focus();
	return false;
}

var fname = "CustomFields_13_51";
var fld = document.getElementById(fname);

CheckNum = parseInt(fld.value);
if(fld.value != "" && isNaN(CheckNum)) {
	alert("Please enter a numeric value for field Mobile Phone");
	fld.select();
	fld.focus();
	return false;
}

var fname = "CustomFields_12_51";
var fld = document.getElementById(fname);

CheckNum = parseInt(fld.value);
if(fld.value != "" && isNaN(CheckNum)) {
	alert("Please enter a numeric value for field Work Phone");
	fld.select();
	fld.focus();
	return false;
}

	return true;
};