var msg="Function Disabled!";
function ckIE(){if (event.button==2){alert(msg);return false;}}
function ckNS(e){if (document.layers||document.getElementById&&!document.all){
		if(e.which==2||e.which==3){alert(msg);return false;}}
}
if (document.layers) {
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=ckNS;
} else if (document.all&&!document.getElementById) {
	document.onmousedown=ckIE;
}
document.oncontextmenu=new Function("alert(msg);return false")





function controllaEmail (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */

var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* 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. */

return false;
}
var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).

for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
return false;
   }
}

// See if "user" is valid 

if (user.match(userPat)==null) {

// user is not 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) {
return false;
   }
}
return true;
}

// Domain is symbolic name.  Check if it's valid.
 
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
return false;
   }
}

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

if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
return false;
}

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

//  End -->


		

// Funzione per controllare, dato in input un campo, che non ci siano caratteri non validi	

		function IsValid(campo){
			var lunghezza;
			var carattere;
			var esito;
			
			lunghezza = campo.length - 1;
						
			for (i=0; i<=lunghezza; i++){
				carattere = campo.substr(i,1);
				switch(carattere){
					case unescape("%5C"):  //backslash
						esito = false;
						break;
					case "|": 
						esito = false;
						break;
					case "!": 
						esito = false;
						break;
					case unescape("%22"): //virgolette
						esito = false;
						break;
					case "£": 
						esito = false;
						break;
					case "$": 
						esito = false;
						break;
					case "%": 
						esito = false;
						break;
					case "&": 
						esito = false;
						break;
					case "/": 
						esito = false;
						break;
					case "(": 
						esito = false;
						break;
					case ")": 
						esito = false;
						break;
					case "=": 
						esito = false;
						break;
					case "?": 
						esito = false;
						break;
					case "'": 
						esito = false;
						break;
					case "*": 
						esito = false;
						break;
					case "+": 
						esito = false;
						break;
					case "°": 
						esito = false;
						break;
					case "§": 
						esito = false;
						break;
					case ">": 
						esito = false;
						break;
					case "<": 
						esito = false;
						break;
					case ";": 
						esito = false;
						break;
					case ",": 
						esito = false;
						break;
					case ":": 
						esito = false;
						break;
					case ".": 
						esito = false;
						break;
					case " ": 
						esito = false;
						break;
					case "[": 
						esito = false;
						break;
					case "]": 
						esito = false;
						break;
					case "{": 
						esito = false;
						break;
					case "}": 
						esito = false;
						break;
					case "~": 
						esito = false;
						break;
					case "ƒ": 
						esito = false;
						break;
					case "ª": 
						esito = false;
						break;
					case "¿": 
						esito = false;
						break;
					case "®": 
						esito = false;
						break;
					case "¬":
						esito = false;
						break;
					case "½":
						esito = false;
						break;
					case "¼":
						esito = false;
						break;
					case "¡": 
						esito = false;
						break;
					case "«": 
						esito = false;
						break;
					case "»": 
						esito = false;
						break;
					case "¦": 
						esito = false;
						break;
					case "©": 
						esito = false;
						break;
					case "¢": 
						esito = false;
						break;
					case "¤": 
						esito = false;
						break;
					case "¯": 
						esito = false;
						break;
					case "´": 
						esito = false;
						break;
					case "±": 
						esito = false;
						break;
					case "¾": 
						esito = false;
						break;
					case "¶": 
						esito = false;
						break;
					case "÷": 
						esito = false;
						break;
					case "¸": 
						esito = false;
						break;
					case "¨": 
						esito = false;
						break;
					case "·": 
						esito = false;
						break;
					case "¹": 
						esito = false;
						break;
					case "³": 
						esito = false;
						break;
					case "²": 
						esito = false;
						break;
					default:
						esito = true;
				}
				if (esito == false){
					break;
				}
			}
			if (esito == false){
				return false;
			}
			else{
				return true;
			}
		}



function Trim(stringa){ //Levo eventuali spazi indesiderati
   reTrim=/\s+$|^\s+/g;
   return stringa.replace(reTrim,"");
}


function CheckBrowser(){
	var OPER=navigator.userAgent.indexOf("Opera");
	
	if (document.layers){ //Netscape 4.x 
	  return "NETSCAPE";
	} 
	else if((OPER>-1)) { 
	  return "OPERA"; 
	} 
	else if (document.all){ // Explorer
	  return "IE"; 
	}
	else if (document.getElementById){ //Netscape 6
	  return "MOZILLA";
	}
}