<!--
function emailCheck (emailStr) {

var checkTLD=0;

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

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 +")*$");

/* 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 "Adresa de email nu este corecta, verifica daca contine caracterul \"@\", respectiv \".\"!";
}
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 "Username-ul contine caractere nepermise!";
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
return "Domeniul contine caractere nepermise!";
   }
}

// See if "user" is valid 
if (user.match(userPat)==null)
{
// user is not valid
return "Username-ul nu este valid!";
}

/* 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 "IP-ul nu este valid!";
   }
}
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 "Domeniul nu este valid!";
   }
}

/* 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 "Adresa de email trebuie sa contina la sfarsit o terminatie valida de domeniu!";
}

// Make sure there's a host name preceding the domain.
if (len<2) {
return "Aceasta adresa de email nu are hostname!";
}

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

/**************************************************************************************/
// return true if all is ok, else it return the string with invalid characters.
// field - the tested field
// valid_ch - string with valid characters
function check_characters(field, valid_ch)
{
	var temp = ""; // temporary variable, the chars of the string are put succesively in it to test if users have entered invalid chars
	var inv_ch = ""; // if invalid chars are used, this are put in this variable and returned as a string.

	for (var i=0; i<field.length; i++)
	{
		temp = field.substring(i, i+1);
		temp = temp.toLowerCase();
		if (valid_ch.indexOf(temp) == "-1")
		{
			ok = "no";
			if(inv_ch == "")
			{
				inv_ch = field.substring(i, i+1);
			}
			else
			{
				for (j = 0; j < inv_ch.length; j++)
				{
					if(inv_ch.indexOf(field.substring(i, i + 1)) == "-1")
					{
						inv_ch = inv_ch + field.substring(i, i+1);
					}
				}
			}
		}
	}

	return inv_ch;
}

/*********************************************************************************/
// i_name - name of the input tag
// valid_str - string with the valid characters
// if field is not required ch_min will be 0
// boolean focus, if true the field receives the focus
function check_input(i_name, ch_min, ch_max, valid_str, only_digits, is_phone)
{
	var error = "";
	var temp;
	var inv_ch_str = "";
	
	if(i_name.value.length < ch_min)
	{
		error = "minim " + ch_min + " caractere!";
	}
	else
	{
		if(is_phone)
		{
			MatchArray = i_name.value.match(/^\s*\+?\d+ ?[\/\-]? ?\d+ ?[\/\-]? ?\d+ ?[\/\-]? ?\d+\s*$/)
			if(MatchArray == null)
			{
				error = "utilizeaza doar cifre, spatii, caracterele \"/\", \"-\" si, eventual, \"+\" la inceput!";
			}
		}
		else if(only_digits)
		{
			MatchArray = i_name.value.match(/^\s*\d+\s*$/)
			if(MatchArray == null)
			{
				error = "utilizeaza doar cifre!";
			}
		}
		else if(valid_str != "" && (temp = check_characters(i_name.value, valid_str)) != "")
		{
			for(var i = 0; i < temp.length; i++)
			{
				inv_ch_str = inv_ch_str + "< " + temp.substring(i, i+1) + " >";
				if(i < temp.length - 1)
				{
					inv_ch_str = inv_ch_str + ", ";
				}
			}
			error = "contine caractere nepermise: \n\t" + inv_ch_str;
		}
		
		if(i_name.value.length > ch_max)
		{
			error = "maxim " + ch_max + " caractere!";
		}
	}

	return error;
}
// -->