$(document).ready(function(){
	$("#aviseme").click(function(){
		if($("#name").val() == ""){
			$("#formBox span").text("Digite um nome");
		}else if(!$("#email").val().isEmail()){
			$("#formBox span").text("Digite um e-mail valido");
		}else{
			$('#formBox').submit();
		}
	});
});

String.prototype.isEmail = function() {
	var rx = new RegExp("\\w+([-+.\’]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
   	var matches = rx.exec(this);
   	return (matches != null && this == matches[0]);
}