function verificarEmail(campoEmail) {
		email = document.getElementById(campoEmail);
		if (email.value== '') {
			alert('Favor Preencher Email.');
			email.focus();
		} else if (isValidEmail(email.value)==false) {
			alert('Favor Preencher Email corretamente.');
			email.focus();
		} else
			return(true);
}
function isValidEmail(email) {
	arrobas = email.indexOf('@');
	if (arrobas != -1) {
		infoEmail = new Array();
		infoEmail = email.split('@');
		if (infoEmail.length < 3 ) {
			if (infoEmail[1] != 'radical.com.br') {
				return(true);
			} else 
				alert('Dominio do email invalido: "radical.com.br"');
		}
	}
	return (false);
}