function login() {
		if (document.signin.user_email.value == '' | document.signin.user_email.value == 0) {
			alert('Please enter your user-name, this would be the email address you signed-up with.');
			document.signin.user_email.focus();
			
		} else if (document.signin.user_password.value == '' | document.signin.user_password.value == 0) {
			alert('Please enter your password');
			document.signin.user_password.focus();
			
		} else {
			
			document.signin.submit();
		}
	}
	

	function login_start_booking() {
		if (document.signin_start_booking.user_email.value == '' | document.signin_start_booking.user_email.value == 0) {
			alert('Please enter your user-name, this would be the email address you signed-up with.');
			document.signin_start_booking.user_email.focus();
			
		} else if (document.signin_start_booking.user_password.value == '' | document.signin_start_booking.user_password.value == 0) {
			alert('Please enter your password');
			document.signin_start_booking.user_password.focus();
			
		} else {
			
			document.signin_start_booking.submit();
		}
	}
	

	function password_reminder() {
		if (document.reminder.user_email.value == 0) {
			alert('Please enter your user-name, this would be the email address you signed-up with.');
			document.reminder.user_email.focus();
		
		} else if (ea_syntax(document.reminder.user_email.value) == false) {
			alert('The email address you entered appears to be invalid, please check it and try again.');
			document.reminder.user_email.focus();
		
		} else {
			
			document.reminder.submit();
		}
	}