var charArray = new Array(
	' ', '!', '"', '#', '$', '%', '&', "'", '(', ')', '*', '+', ',', '-',
	'.', '/', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';',
	'<', '=', '>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
	'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
	'X', 'Y', 'Z', '[', '\\', ']', '^', '_', '`', 'a', 'b', 'c', 'd', 'e',
	'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
	't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~', '', 'Ç', 'ü',
	'é', 'â', 'ä', 'à', 'å', 'ç', 'ê', 'ë', 'è', 'ï', 'î', 'ì', 'Ä', 'Å',
	'É', 'æ', 'Æ', 'ô', 'ö', 'ò', 'û', 'ù', 'ÿ', 'Ö', 'Ü', 'ø', '£', 'Ø',
	'×', 'ƒ', 'á', 'í', 'ó', 'ú', 'ñ', 'Ñ', 'ª', 'º', '¿', '®', '¬', '½',
	'¼', '¡', '«', '»', '_', '_', '_', '¦', '¦', 'Á', 'Â', 'À', '©', '¦',
	'¦', '+', '+', '¢', '¥', '+', '+', '-', '-', '+', '-', '+', 'ã', 'Ã',
	'+', '+', '-', '-', '¦', '-', '+', '¤', 'ð', 'Ð', 'Ê', 'Ë', 'È', 'i',
	'Í', 'Î', 'Ï', '+', '+', '_', '_', '¦', 'Ì', '_', 'Ó', 'ß', 'Ô', 'Ò',
	'õ', 'Õ', 'µ', 'þ', 'Þ', 'Ú', 'Û', 'Ù', 'ý', 'Ý', '¯', '´', '­', '±',
	'_', '¾', '¶', '§', '÷', '¸', '°', '¨', '·', '¹', '³', '²', '_', ' ');
  
var hex_digits = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
		'A', 'B', 'C', 'D', 'E', 'F');

var mail = "73697465406672616E636573636F62616C7A616E692E6974";
var mailto = "6D61696C746F3A";

function sendmail(){
    //alert(PlainMail());
    document.location.href = PlainMail();
}
function createMail(){
    var char_str = "";
	var i;
	for(i=0; i < mail.length; i+=2)
		char_str += byteToChar(parseInt(mail.substring(i, i+2), 16));
    document.write(char_str );
}
function PlainMail(){
	var hex_str = mailto + mail;
  var char_str = "";
	var i;
	for(i=0; i < hex_str.length; i+=2)
		char_str += byteToChar(parseInt(hex_str.substring(i, i+2), 16));
  return char_str;
}
function byteToChar(n)
{
	if(n < 32 || n > 255) return " ";
	return charArray[n-32];
}

function CheckContactForm(form){
    var val = true;
    if (!emailCheck(form.visitormail.value))
        val = false;
    else if (form.notes.textLength < 1){
        alert("Messaggio non compilato / Message body is empty");
        val = false;
    }
    return val;
}

function CheckDownloadForm(form){
    var val = true;
    if (!form.license.checked){
        alert("Messaggio non compilato / Message body is empty");
        val = false;
    }
    return val;
}


function emailCheck (emailStr) {
    /* The following pattern is used to check if the entered e-mail address
       fits the user@domain format.  It also is used to separate the username
       from the domain. */
    var emailPat=/^(.+)@(.+)$/
    /* The following string represents the pattern for matching all special
       characters.  We don't want to allow special characters in the address. 
       These characters include ( ) < > @ , ; : \ " . [ ]    */
    var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
    /* The following string represents the range of characters allowed in a 
       username or domainname.  It really states which chars aren't allowed. */
    var validChars="\[^\\s" + specialChars + "\]"
    /* The following pattern applies if the "user" is a quoted string (in
       which case, there are no rules about which characters are allowed
       and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
       is a legal e-mail address. */
    var quotedUser="(\"[^\"]*\")"
    /* The following pattern applies for domains that are IP addresses,
       rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
       e-mail address. NOTE: The square brackets are required. */
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
    /* The following string represents an atom (basically a series of
       non-special characters.) */
    var atom=validChars + '+'
    /* The following string represents one word in the typical username.
       For example, in john.doe@somewhere.com, john and doe are words.
       Basically, a word is either an atom or quoted string. */
    var word="(" + atom + "|" + quotedUser + ")"
    // The following pattern describes the structure of the user
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
    /* The following pattern describes the structure of a normal symbolic
       domain, as opposed to ipDomainPat, shown above. */
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


    /* Finally, let's start trying to figure out if the supplied address is
       valid. */

    /* Begin with the coarse pattern to simply break up user@domain into
       different pieces that are easy to analyze. */
    var matchArray=emailStr.match(emailPat)
    if (matchArray==null) {
      /* Too many/few @'s or something; basically, this address doesn't
         even fit the general mould of a valid e-mail address. */
        alert("Email non corretta (verificare @ e .'s) / Email address seems incorrect (check @ and .'s)")
        return false
    }
    var user=matchArray[1]
    var domain=matchArray[2]

    // See if "user" is valid 
    if (user.match(userPat)==null) {
        // user is not valid
        alert("L'utente non sembra valido / The username doesn't seem to be valid.")
        return false
    }

    /* if the e-mail address is at an IP address (as opposed to a symbolic
       host name) make sure the IP address is valid. */
    var IPArray=domain.match(ipDomainPat)
    if (IPArray!=null) {
        // this is an IP address
          for (var i=1;i<=4;i++) {
            if (IPArray[i]>255) {
                alert("Indirizzo Ip o dominio non valido! / Destination IP address is invalid!")
            return false
            }
        }
        return true
    }

    // Domain is symbolic name
    var domainArray=domain.match(domainPat)
    if (domainArray==null) {
        alert("The domain name doesn't seem to be valid.")
        return false
    }

    /* domain name seems valid, but now make sure that it ends in a
       three-letter word (like com, edu, gov) or a two-letter word,
       representing country (uk, nl), and that there's a hostname preceding 
       the domain or country. */

    /* Now we need to break up the domain to get a count of how many atoms
       it consists of. */
    var atomPat=new RegExp(atom,"g")
    var domArr=domain.match(atomPat)
    var len=domArr.length
    if (domArr[domArr.length-1].length<2 || 
        domArr[domArr.length-1].length>3) {
       // the address must end in a two letter or three letter word.
       alert("The address must end in a three-letter domain, or two letter country.")
       return false
    }

    // Make sure there's a host name preceding the domain.
    if (len<2) {
       var errStr="This address is missing a hostname!"
       alert(errStr)
       return false
    }

    // If we've gotten this far, everything's valid!
    return true;
}