function emailCheck (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. */

alert("Email address seems incorrect (check @ and .'s)");
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) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
return false;
   }
}

// See if "user" is valid 

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

// user is not valid

alert("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("Destination IP address is invalid!");
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) {
alert("The domain name does not seem to be valid.");
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) {
alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

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

if (len<2) {
alert("This address is missing a hostname!");
return false;
}

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


function checkall()
{
//	set today value
	var dateObj = new Date
	var lmonth = dateObj.getMonth() +1
	var date = dateObj.getDate()
	var fyear = dateObj.getYear()
	if (fyear < 2000) {
		fyear = fyear + 1900
	}
	
	document.forms[0].xdate.value= date + "/" + lmonth + "/"  + fyear;

	
	if  (document.forms[0].xname.value=="") 	{
		alert("Το όνομα δεν μπορεί να' ναι κενό");
		document.forms[0].xname.focus();
		return;
	}
	
	if  (document.forms[0].xposition.value=="") 	{
		alert("Η ιδιότητα δεν μπορεί να' ναι κενή");
		document.forms[0].xposition.focus();
		return;
	}

	if  (document.forms[0].xmail.value=="") 	{
		alert("To e-mail δεν μπορεί να ναι κενό");
		document.forms[0].xmail.focus();
		return;
	}
	else	{
		emailStr=document.forms[0].xmail.value;
		if (emailCheck(emailStr)==false ) {
			document.forms[0].xmail.focus();
			alert("Λάθος e-mail");
			return;
		}
	}	

	if  (document.forms[0].xsubject.value=="") 	{
		alert("Το αντικείμενο δεν μπορεί να' ναι κενό");
		document.forms[0].xsubject.focus();
		return;
	}

	if  (document.forms[0].xmesg.value=="") 	{
		alert("Το σχόλιο δεν μπορεί να' ναι κενό");
		document.forms[0].xmesg.focus();
		return;
	}

	document.forms[0].submit();
}

function checkalle()
{
//	set today value
	var dateObj = new Date
	var lmonth = dateObj.getMonth() +1
	var date = dateObj.getDate()
	var fyear = dateObj.getYear()
	if (fyear < 2000) {
		fyear = fyear + 1900
	}
	document.forms[0].xdate.value= date + "/" + lmonth + "/"  + fyear;

	
	if  (document.forms[0].xname.value=="") 	{
		alert("the field <Name> is necessary");
		document.forms[0].xname.focus();
		return;
	}
	
	if  (document.forms[0].xposition.value=="") 	{
		alert("The field <Position> is necessary");
		document.forms[0].xposition.focus();
		return;
	}

	if  (document.forms[0].xmail.value=="") 	{
		alert("Field <e-mail> is necessary");
		document.forms[0].xmail.focus();
		return;
	}
	else	{
		emailStr=document.forms[0].xmail.value;
		if (emailCheck(emailStr)==false ) {
			document.forms[0].xmail.focus();
			alert("Λάθος e-mail");
			return;
		}
	}	

	if  (document.forms[0].xsubject.value=="") 	{
		alert("field <Subject> is necessary");
		document.forms[0].xsubject.focus();
		return;
	}

	if  (document.forms[0].xmesg.value=="") 	{
		alert("field <message/comment> is blank");
		document.forms[0].xmesg.focus();
		return;
	}

	document.forms[0].submit();
}

function checksome()
{
	//	set today value
	var dateObj = new Date
	var lmonth = dateObj.getMonth() +1
	var date = dateObj.getDate()
	var fyear = dateObj.getYear()
	if (fyear < 2000) {
		fyear = fyear + 1900
	}
	document.forms[0].xdate.value= date + "/" + lmonth + "/"  + fyear;

	
	if  (document.forms[0].xname.value=="") 	{
		alert("Το όνομα δεν μπορεί να' ναι κενό");
		document.forms[0].xname.focus();
		return;
	}
	
	if  (document.forms[0].xposition.value=="") 	{
		alert("Η ιδιότητα δεν μπορεί να' ναι κενή");
		document.forms[0].xposition.focus();
		return;
	}

	if  (document.forms[0].xmail.value=="") 	{
		alert("To e-mail δεν μπορεί να ναι κενό");
		document.forms[0].xmail.focus();
		return;
	}
	else	{
		emailStr=document.forms[0].xmail.value;
		if (emailCheck(emailStr)==false ) {
			document.forms[0].xmail.focus();
			alert("Λάθος e-mail");
			return;
		}
	}	

	if  (document.forms[0].xsubject.value=="") 	{
		alert("Το αντικείμενο δεν μπορεί να' ναι κενό");
		document.forms[0].xsubject.focus();
		return;
	}


	if ( (document.forms[0].xchek1.checked) && (document.forms[0].xmesg1.value=="") ) {
		alert("Το ελληνικό κείμενο λείπει!!!!");
		document.forms[0].xmesg1.focus();
		return;
	}
	
	if ( (document.forms[0].xchek2.checked) && (document.forms[0].xmesg2.value=="") ) {
		alert("Το αγγλικό κείμενο λείπει!!!!");
		document.forms[0].xmesg2.focus();
		return;
	}
	
	if ( (document.forms[0].xchek3.checked) && (document.forms[0].xmesg3.value=="") ) {
		alert("Το γαλλικό κείμενο λείπει!!!!");
		document.forms[0].xmesg3.focus();
		return;
	}

	if ( (document.forms[0].xchek4.checked) && (document.forms[0].xmesg4.value=="") ) {
		alert("Το γερμανικό  κείμενο λείπει!!!!");
		document.forms[0].xmesg4.focus();
		return;
	}

	if ( (document.forms[0].xchek5.checked) && (document.forms[0].xmesg5.value=="") ) {
		alert("Το ισπανικό κείμενο λείπει!!!!");
		document.forms[0].xmesg5.focus();
		return;
	}

	if ( (document.forms[0].xchek6.checked) && (document.forms[0].xmesg6.value=="") ) {
		alert("Το πορτογαλικό κείμενο λείπει!!!!");
		document.forms[0].xmesg6.focus();
		return;
	}

	if ( (document.forms[0].xchek7.checked) && (document.forms[0].xmesg7.value=="") ) {
		alert("Το ιταλικό κείμενο λείπει!!!!");
		document.forms[0].xmesg7.focus();
		return;
	}

	if ( (document.forms[0].xchek8.checked) && (document.forms[0].xmesg8.value=="") ) {
		alert("Το σερβικό κείμενο λείπει!!!!");
		document.forms[0].xmesg8.focus();
		return;
	}




		document.forms[0].submit();
}

function mytoday()
{
	var dateObj = new Date
	var lday = dateObj.getDay()
	var lmonth = dateObj.getMonth() + 1
	var date = dateObj.getDate()
	var fyear = dateObj.getYear()
	if (fyear < 2000) {
		fyear = fyear + 1900
	}
	document.write( date + "/" + lmonth + "/"  + fyear)
	return;
}