function BadEmail(strng) {
	var error = "";
	if (strng == "") {
		error = "empty";
	}
	var emailFilter=/^.+@.+\..{2,3}$/;
	if (!(emailFilter.test(strng))) { 
		error = "invalid";
	} else {
		//test email for illegal characters
		var illegalChars = /[\(\)\,\;\:\\\"\[\]]/;
		if (strng.match(illegalChars)) {
			error = "invalid";
		}
	}
	return error;    
}

function BadInput(strng) {
	var error = "";
	if (strng.length == 0) {
		error = "empty";
	}
	return error;     
}