function walidacja_pol_kontakt()
{
        if(document.getElementById('imie_nazwisko').value == ""
        || document.getElementById('firma').value == "" || document.getElementById('ulica').value == ""
        || document.getElementById('kod_i_miasto').value == "" || document.getElementById('telefon').value == ""
        || document.getElementById('tresc').value == "")
        {

                alert("Proszę wypełnić wszystkie pola.");
                return false;
        }
        else
        {
                return true;
        }
}

function walidacja_pol()
{
        if(document.getElementById('imie_praca').value == "" || document.getElementById('nazwisko_praca').value == ""
        || document.getElementById('data_urodzenia').value == "" || document.getElementById('miejsce_zamieszkania').value == ""
        || document.getElementById('stanowisko').value == "" || document.getElementById('telefon').value == "" || document.getElementById('email').value == "" || document.getElementById('cv').value == "")
        {

                alert("Proszę wypełnić wszystkie pola.");
                return false;
        }
        else
        {
                return true;
        }
}

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("Adres Email wydaje się być błędnie wpisany")
       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("Użytkownik wydaje się być błędny.")
    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("Docelowy IP adres jest niepoprawny!")
              return false
           }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
       alert("Domena jest błędna.")
    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("Format adresu jest niepoprawny.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="Adres email wpisano bez domeny!"
   alert(errStr)
   return false
}

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


function check_email(email){
invalid = " /:,;";
if(email == "") { return false }
for (i=0;i < invalid.length; i++){
       bad = invalid.charAt(i);
       if (email.indexOf (bad,0)!= -1) { return false }
}
at=email.indexOf("@",0);
if( (at==-1) || (at==0) ) {return false }
       if(email.indexOf("@", at+1)!= -1) {return false}
       period=email.indexOf(".",at);
       if( (period==-1)||(period==at+1)) {return false }
       if(period+3>email.length==-1) {return false}
       return true;
}
function zapisz(form){
       if(!(check_email(form.email.value))) {
              window.alert('podaj prawidłowy adres e-mail');
              form.email.focus();
              form.email.select();
              return false;
       }
       else {
              return true;
       }
}