function  emailValidate(element){
var re = /^[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)*@([a-zA-Z0-9_-]+)(\.[a-zA-Z0-9_-]+)*(\.[a-zA-Z]{2,4})$/i;
     if(element.value.match(re) == null) return false;
     else return true;  
}
function sprawdzEmail(el){
var msg = document.getElementById('msgMail');
var valueEL = el.value;
var check = emailValidate(el);

if(check) {
	msg.style.color = 'green';
	msg.innerHTML = 'mail poprawny';
}else{
   msg.style.color = 'red';
	msg.innerHTML = 'mail niepoprawny';
}
}

function sprawdzSecure(el){
var msgS = document.getElementById('msgSecure');
var elSec = document.getElementById('inputSecure');
msgS.innerHTML = '';
 if(elSec.value == '' || (elSec.value).length<4){
    msgS.style.color = 'red';
	msgS.innerHTML = 'Wpisz kod z obrazka';
  }
}

function sub(){
var inputMail = document.getElementById('inputMail');
var mailValue = inputMail.value;
var secure = true;
var msg = document.getElementById('msgMail');
msg.innerHTML = '';
var okMail = true;


if(mailValue == ''){
msg.innerHTML = 'wpisz mail';
okMail = false;
}
else{
msg.style.color = 'green';
msg.innerHTML = 'mail poprawny';
}

if(!emailValidate(inputMail)){
msg.style.color = 'red';
msg.innerHTML = 'mail niepoprawny';
okMail = false;
}
else{
msg.style.color = 'green';
msg.innerHTML = 'mail poprawny';
}

if(document.getElementById('inputSecure')){
var msgS = document.getElementById('msgSecure');
var elSec = document.getElementById('inputSecure');
msgS.innerHTML = '';

 if(elSec.value == '' || (elSec.value).length<4){
    msgS.style.color = 'red';
	msgS.innerHTML = 'Wpisz kod z obrazka';
    secure = false; 
 } 
}

if(okMail && secure) return true;
else return false;

}