function validate( f ) {
	// Set up inital varables from the form
	var firstName = document.form.Firstname.value;
	var lastName = document.form.Lastname.value;
	var email = document.form.email.value;
	var reEmail = /^\w+(\.\w+){0,}@\w+(\.\w+){0,}$/;
			   
	if (firstName == "") {
		msg = 'You need to enter a First Name';
		document.form.Firstname.focus();	
		alert( msg );	  
		return false; 
	}
	else if (lastName == "") {
		msg = 'You need to enter a Last Name';
		document.form.Lastname.focus();	
		alert( msg );	  
		return false;  
	}
	else if (!reEmail.test(email)) {
		msg ='You need a valid Email address e.g. bob@server.com';
		document.form.email.focus();
		alert( msg );
		return false; 
	}
	document.form.submit();
	return true; 
	
}