// apri popup
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
// Form validation

function valida(campi,messg,messgmail) {
		var aCampi = campi.split(",");
		var errore = "";
		var emailFilter = /^.+@.+\..{2,3}$/;
		var counter = 0;
		var primo = "";
		for (var c = 0; c < aCampi.length; c++){
				switch ( document.getElementById(aCampi[c]).value ) {
					case "":
						if (primo == "") {primo = aCampi[c];}
						counter = counter +1;
						errore = errore + counter + ') ' + aCampi[c] /* + ':' + messg*/ +  '. \n';
					//default: 
				}
		}
		if (!(emailFilter.test(document.getElementById("Email").value))) {
			counter = counter +1;     					
			errore = errore /* + counter + ') '*/ + messgmail + ".\n";
			if (primo == "") {primo = 'Email';}
		}
	if (errore != "") {
		alert(  messg + ' \n _______________________________ \n \n' + errore + '\n _______________________________ ');
		document.getElementById(primo).focus();	
		return false;
	}
	else {
		return true;
	}

} 


function showHideLayer (idLayer) {
(document.getElementById(idLayer).style.display=='none')?(document.getElementById(idLayer).style.display='block'):(document.getElementById(idLayer).style.display='none');
}