function emptyField() {
	jQuery("#errormsg").text("");
	jQuery("input[name='input_2']").val("");
}

function checkMailAndAdd() {
	var email = jQuery("input[name='input_2']").val();
	var regex = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	var section = jQuery("input[name='section']").val();
	if (regex.test(email) == false) {
		jQuery("#errormsg").text("indirizzo email non valido").css("color", "red");
		return false;
	} else {
		createFunctionFrame('http://pugc.tuttogratis.it?PowerUGC=newsletter&PUGCaction=subscription&email=' + email + '&nlwhat=' + section); 
		//createFunctionFrame('http://community.tuttogratis.it/newsletter2.php?email=' + email + '&section=' + section);
	}
}