/*controllo campi obbligatori*/
function campiObbligatori(nome){
	nomeForm = document.forms[nome];
	result = true;
	for (i=0;i<nomeForm.length;i++){
		var campo=nomeForm.elements[i]
		if(campo.name == "_email"){
			txt=nomeForm._email.value;
			if ((txt.indexOf("@")<3)) {
			alert("Email address not valid");
			result = false
			//return false
			}
		}else if(campo.name =="email"){
			txt=nomeForm.email.value;
			if (txt != ''){
				if ((txt.indexOf("@")<3)) {
				alert("email address not valid.");
				result = false
				//return false
				}
			}
		}else if(campo.name.substring(0,1) =='_'){
			if(campo.value==''){
				alert('* Indicates required information');
				result = false
				//return false
				break;
			}
		}
	}
	return result;
}
function controlloLogin(nome){
	if (nome == "" || nome == null){
		nome = "login"
	}
	forms = document.forms(nome);
	user = forms.elements("_user").value;
	pass = forms.elements("_pass").value;
	if (user == "" || pass == ""){
		alert("Insert data Access for Log-in");
		return false
	}else{
		return true
	}
}
/*controllo email*/
function controlloEmail(nome) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	
	if (matchArray==null) {
		alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			alert("Ths username contains invalid characters.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths domain name contains invalid characters.");
			return false;
	   }
	}
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Destination IP address is invalid!");
				return false;
		   }
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			alert("The domain name does not seem to be valid.");
			return false;
	   }
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
		alert("The address must end in a well-known domain or two letter " + "country.");
		return false;
	}
	if (len<2) {
		alert("This address is missing a hostname!");
		return false;
	}
	return true;
}
/*controlla che il checkbox accetto sia selezionato*/
function controlloPrivacy(nome){
	if (!document.forms[nome].elements['accetto'].checked) {
		alert("Accept Privacy Policy!");
		return false
	}
}
/*controlla che i caratteri inseriti nel campo siano esclusivamente numeri
 onKeyPress="return controlloNum()"*/
function controlloNum(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : 
        ((evt.which) ? evt.which : 0));
    if (charCode < 45 || charCode > 57) {
        alert("Puoi inserire solo numeri! (usa il punto (.) per separare i decimali");
        return false;
    }
    return true;
}
function controlloValuta(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : 
        ((evt.which) ? evt.which : 0));
    if (charCode < 45 || charCode > 57) {
        alert("Puoi inserire solo numeri! (usa il punto (.) per separare i decimali");
        return false;
    }
    return true;
}


function checkAsRadio(nome,id,num){
	for(i=1; i<=num;i=i+1){
		x = document.getElementById(nome+i);
		if(i==id){
			x.checked = true;
		}else{
			x.checked = false;
		}
	}
}