function Locale(str1, str2, lng) {
var Loc;
	switch (lng) {
		case "it":
			Loc = str1; break
		case "sa":
			Loc = str2; break
	}
	return Loc;
}

function emailValidation(frm){
var esito = true;
var Lang = frm.ver.value;

	with (frm.txtMail){

	 	if (value.length > 0){
			apos=value.indexOf("@"); 
			dotpos=value.lastIndexOf(".");
			lastpos=value.length-1;
			spacepos=value.indexOf(" ");
			if (apos<1 || dotpos-apos<2 || lastpos-dotpos>4 || lastpos-dotpos<2 || spacepos>-1) {		
				esito = false;
			}
		}
	}

	if (esito==false) {
		alert(Locale("Indirizzo e-mail non valido","Indiritzu e-mail non bālidu",Lang));
		frm.txtMail.focus();
	}
	return esito
}