// JavaScript Document
function ControlloEmail(ctrl)
{
	var cont1=0;
	var cont2=0;
	var dom=""
	var mail=ctrl.value;
	if (mail != ""){

	// controlla che vengano inseriti i caratteri @ e .
	if ((mail.indexOf('@', 0) == -1) || (mail.indexOf('.', 0) == -1)){
		alert("\u0412\u044b \u0443\u043a\u0430\u0437\u0430\u043b\u0438 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0432\u0439 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0439 \u0430\u0434\u0440\u0435\u0441!");
		ctrl.select();
		ctrl.focus();
		return false;
	} else {
	//controlla che dopo il carattere @ ci sia un punto 
		for (var i=0; i<mail.length; i++){
			var ch=mail.substring(i, i+1);
		//controlla che non vengano inseriti spazi 
			if (ch == " "){cont2++} 

			if (ch == "@"){
		//controllo per verificare la presenza di almeno un carattere prima di @	
		if (i<1){cont2++}	
			cont2++;             
		for (var n=i; n<mail.length; n++){	        
				var ch2=mail.substring(n, n+1);
		dom+=ch2;
				if (ch2 == "."){
			//almeno un carattere prima del punto 
			if (n==(i+1)){cont2++}
			cont1=1;
			dom="";	    
		}
			}
			}
		}
		if ((cont1==1) && (cont2==1) && (dom.length>1) && (dom.length<4)) {return true} 
		else {
			alert("\u0412\u044b \u0443\u043a\u0430\u0437\u0430\u043b\u0438 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0432\u0439 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0439 \u0430\u0434\u0440\u0435\u0441!");
			ctrl.select();
			ctrl.focus();
			return false
		}
		}
	} else { 
		alert("\u0412\u044b \u0443\u043a\u0430\u0437\u0430\u043b\u0438 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0432\u0439 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0439 \u0430\u0434\u0440\u0435\u0441!");
		ctrl.select();
		ctrl.focus();
	return false
	}     
}

function trim(str){
	var lunghezza = str.length;
	var s = 0;
	var i = 0;
	while(i < lunghezza) {
		if (str.charAt(i) == " "){
			s = s + 1;
		}
		i = i + 1;
	}
	return s;
}

function Controllo() {

	if ((document.contatti.rag_soc.value=="") || (trim(document.contatti.rag_soc.value) == document.contatti.rag_soc.value.length)) {
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0444\u0438\u0440\u043c\u044b \u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.rag_soc.focus();
		document.contatti.rag_soc.focus();
		return;
    } 

	if ((document.contatti.nome.value=="") || (trim(document.contatti.nome.value) == document.contatti.nome.value.length)){
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u0418\u043c\u044f\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.nome.focus();
		document.contatti.nome.select();
		return;
    } 	
	
	else if ((document.contatti.cognome.value=="") || (trim(document.contatti.cognome.value) == document.contatti.cognome.value.length)){
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u0424\u0430\u043c\u0438\u043b\u0438\u044f\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.cognome.focus();
		document.contatti.cognome.select();
		return;
    } 

	else if ((document.contatti.indirizzo.value=="") || (trim(document.contatti.indirizzo.value) == document.contatti.indirizzo.value.length)){
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u041f\u043e\u0447\u0442\u043e\u0432\u043e\u0439 \u0430\u0434\u0440\u0435\u0441\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.indirizzo.focus();
		document.contatti.indirizzo.select();
		return;
    }

	else if ((document.contatti.citta.value=="") || (trim(document.contatti.citta.value) == document.contatti.citta.value.length)) {
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u0413\u043e\u0440\u043e\u0434\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.citta.focus();
		document.contatti.citta.select();
		return;
    }

	else if ((document.contatti.cap.value=="") || (trim(document.contatti.cap.value) == document.contatti.cap.value.length)) {
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u041f\u043e\u0447\u0442\u043e\u0432\u043e\u0439 \u0438\u043d\u0434\u0435\u043a\u0441\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.cap.focus();
		return;
    }
	
	else if ((document.contatti.prov.value=="") || (trim(document.contatti.prov.value) == document.contatti.prov.value.length)){
    	alert("\u041f\u043e\u043b\u0435 \u00ab\u041e\u0431\u043b\u0430\u0441\u0442\u044c\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.prov.focus();
		document.contatti.prov.select();
		return;
    }


	else if ((document.contatti.email.value=="") || (trim(document.contatti.email.value) == document.contatti.email.value.length)){
    	alert("\u041f\u043e\u043b\u0435 \u00abE-mail\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
    	document.contatti.email.focus();
		document.contatti.email.select();
		return;
    }

	if ( !ControlloEmail(document.contatti.email)) {
		document.contatti.email.focus();
		document.contatti.email.select();
		return;
	}

	if ((document.contatti.richiesta.value == "") || (trim(document.contatti.richiesta.value) == document.contatti.richiesta.value.length)) {
		alert("\u041f\u043e\u043b\u0435 \u00ab\u0417\u0430\u043f\u0440\u043e\u0441\u00bb \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c");
		document.contatti.richiesta.focus();
		document.contatti.richiesta.select();
		return;
	}
	
	if (document.contatti.accetto.checked==false) {
    	alert("\u0422\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0412\u0430\u0448\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043d\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u043f\u0435\u0440\u0441\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445");
		return;
    } 
	else { 
		document.contatti.submit();
		}
}