function checkEmail(str){
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(str)){	return true;	}else{		return false;	}
}		

function subme(m) {
	var errors='';
  	ook=true;

	if (m.firstname.value=="") {
		errors += '- Name\n';
    	ook=false;
  	};
    
	if (m.realname.value=="") {
		errors+='- Surname\n';
  		ook=false;
  	};
  
	if (!checkEmail(m.email.value)) {
		errors+='- Please insert a valid email address\n';
		ook=false;
  	};
    
	var trattDati = null;
	if (m.tratt_dati == undefined) {
		trattDati = m.Privacy;
	} else {
		trattDati = m.tratt_dati;
	}
	   	
	if (!(trattDati.checked)) {	
		errors+='\n'+'- Privacy policy is required\n';
    	ook=false;
  	};

	if (!ook) {
  		alert('The following fields are required:\n\n'+errors);
	}
  
  	return ook;
}