re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/

function check_email(Form) {
	if (re.test(Form.email.value)) {
		return true
	}
	alert("Please enter a valid e-mail address (i.e. name@domain.com).")
	Form.email.focus()
	Form.email.select()
	return false
}