/* Nascondi o visualizza DIV */
function showBox(box){
	document.getElementById('box'+box).style.display = "block";
	document.getElementById('voce'+box).style.backgroundImage='url("images/small_nav_tab.png")'; 
	document.getElementById(box).style.color='#FFFFFF';
}

function hideBox(box){
	document.getElementById('box'+box).style.display = "none";
	document.getElementById('voce'+box).style.backgroundImage='url("images/small_nav_tab_off.png")'; 
	document.getElementById(box).style.color='#abbecd';
}

function show(box){
	document.getElementById(box).style.display = "block";
}

function hide(box){
	document.getElementById(box).style.display = "none";
	document.getElementById('voceb').style.backgroundImage='url("images/small_nav_tab_off.png")'; 
	document.getElementById('vocec').style.backgroundImage='url("images/small_nav_tab_off.png")'; 
	document.getElementById('b').style.color='#abbecd';
	document.getElementById('c').style.color='#abbecd';
}

function bot(box){
	document.getElementById('voceb').style.backgroundImage='url("images/small_nav_tab_off.png")'; 
	document.getElementById('vocec').style.backgroundImage='url("images/small_nav_tab_off.png")'; 
	document.getElementById('b').style.color='#abbecd';
	document.getElementById('c').style.color='#abbecd';
	document.getElementById('voce'+box).style.backgroundImage='url("images/small_nav_tab.png")';
	document.getElementById(box).style.color='#FFFFFF';
}


function formValidate(fase){
	var errore = 0;

	if(document.contactForm.nome.value == ""){
		errore = 1;
	}
	
	if(document.contactForm.cognome.value == ""){
		errore = 1;
	}
	
	var espressione = /^[_a-z0-9+-]+(\.[_a-z0-9+-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)+$/;
	if (!espressione.test(document.contactForm.email.value))
	{
	    errore = 1;
	}
	
	if(document.contactForm.email.value == ""){
		errore = 1;
	}
	
	if(document.contactForm.cfname.value == ""){
		errore = 1;
	}
	
	if(document.contactForm.email.value != document.contactForm.cfname.value){
		errore = 3;
	}
	
	if(document.contactForm.citta.value == ""){
		errore = 1;
	}
	
if (fase == 12){
		if(document.contactForm.corpo.value == ""){
			errore = 1;
		}
		if(document.contactForm.azienda.value == ""){
			errore = 1;
		}
		if(document.contactForm.professione.value == ""){
			errore = 1;
		}
		if(document.contactForm.telefono.value == ""){
			errore = 1;
		}
}
	
	if((document.contactForm.prov.value == "") || (document.contactForm.prov.value == 0)){
		errore = 1;
	}
	
 	if(document.contactForm.telefono.value != ""){
			if(isNaN(document.contactForm.telefono.value) == true){
				errore = 2;
			}
	}
	
	if(! (document.contactForm.privacy.checked)){
		errore = 1;
	}
		
	if(errore==1){
		alert("Tutti i campi con (*) sono obbligatori");
	}else if(errore==2){
		alert("Controlla il campo Telefono!");
		document.contactForm.telefono.focus();
	}else if(errore==3){
		alert("Controlla il campo Conferma Email!");
		document.contactForm.cfname.focus();
	}else{
		document.contactForm.submit();
	}
}