function cadastrarNewsletter(){
	x = document.formNewsletter;
	var i;
	for(i=0; i<x.length; i++){
		if(x[i].value == ""){
			alert("Preencha todos os campos corretamente!");
			x[i].focus();
			return false;
		}
		if(x[i].name == "email"){
			if(x[i].value.indexOf("@") == -1){
				x[i].focus();
				alert("Preencha o email corretamente!");
				return false;
			}//if
		}//if
	}//for
	x.submit();
}//function