//rollover
function rollThis(whichImage,whichPic){
	document.images[whichImage].src = whichPic;
	}

function changeBack(whichImage,restoreImage){
	document.images[whichImage].src = restoreImage;
	}
	
//popup	
var pop

function popUp(URL,w,h){
if(pop!=null && !pop.closed){
pop.close()
}
pop = window.open(URL,'detail_popup','width='+w+',height='+h+',resizable=0,scrollbars=0')
pop.focus() 
} 


//form



function ChkMail(amail) {
   EmailAddr = amail;
   Filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
   if (Filtro.test(EmailAddr)) {
      return true;
   } else {
      return false;
   }
}


function checkform_contact (form) {
	
	if (form.nome.value == "") {
		alert( "Inserire il proprio nome e cognome" );
		form.nome.focus();
		return false;
	}
	
	if (form.azienda.value == "") {
		alert( "Inserire il nome dell'azienda di appartenenza" );
		form.azienda.focus();
		return false;
	}
	
	if ((form.email.value == "") || (!ChkMail(form.email.value))) {
		alert( "Inserire un indirizzo e-mail valido" );
		form.email.focus();
		return false;
	}
	
}

function checkform_contact_eng (form) {
	
	if (form.nome.value == "") {
		alert( "First and last name missing" );
		form.nome.focus();
		return false;
	}
	
	if (form.azienda.value == "") {
		alert( "Company name missing" );
		form.azienda.focus();
		return false;
	}
	
	if ((form.email.value == "") || (!ChkMail(form.email.value))) {
		alert( "Type a valid email address" );
		form.email.focus();
		return false;
	}
	
}