function ValidateJoinForm() { 
  if (document.getElementById('username').value == ''){
		window.alert('Please enter your nickname');
		return false;
	}
	if (document.getElementById('email').value == ''){
		window.alert('Please enter your email address');
		return false;
	}
	if (document.getElementById('confirmemail').value == ''){
		window.alert('Please confirm your email address');
		return false;
	}
	if (document.getElementById('email').value != document.getElementById('confirmemail').value){
		window.alert('please ensure you enter the same email address twice');
		return false;
	}
	if (document.getElementById('password2').value == ''){
		window.alert('Please enter a password');
		return false;
	}
	if (document.getElementById('confirmpassword2').value == ''){
		window.alert('Please confirm your password');
		return false;
	}
	if (document.getElementById('password2').value != document.getElementById('confirmpassword2').value){
		window.alert('Please ensure you type the same password twice');
		return false;
	}
	if (document.getElementById('First_name').value == ''){
		window.alert('Please enter your first name');
		return false;
	}
	if (document.getElementById('Last_name').value == ''){
		window.alert('Please enter your last name');
		return false;
	}
	if (document.getElementById('Address').value == ''){
		window.alert('Please enter the first line of your address');
		return false;
	}
	if (document.getElementById('postcode').value == ''){
		window.alert('Please enter your postcode');
		return false;
	}
	if (document.getElementById('mobile').value == ''){
		window.alert('Please enter your mobile number');
		return false;
	}
}

function ValidateEditDetailsForm() { 
	if (document.getElementById('First_name').value == ''){
		window.alert('Please enter your first name');
		return false;
	}
	if (document.getElementById('Last_name').value == ''){
		window.alert('Please enter your last name');
		return false;
	}
	if (document.getElementById('Address').value == ''){
		window.alert('Please enter the first line of your address');
		return false;
	}
	if (document.getElementById('postcode').value == ''){
		window.alert('Please enter your postcode');
		return false;
	}
  if (document.getElementById('mobile').value == ''){
		window.alert('Please enter your mobile number');
		return false;
	}
}