function check(){
	
	var osoba = document.getElementById('osoba_wys');
	var email = document.getElementById('email');
	var tresc = document.getElementById('tresc');
	var uwaga = document.getElementById('uwaga');
	
	if (osoba.value.length == 0 || email.value.length == 0 || tresc.value.length == 0){
		uwaga.innerHTML = '<h3>Uzupełnij wymagane pola</h3>';
		
		if (osoba == '' || osoba.value.length == 0)	osoba.style.borderColor = 'red';
		else osoba.style.borderColor = '#C9C9C9';
			
		if (email == '' || email.value.length == 0) email.style.borderColor = 'red';
		else email.style.borderColor = '#C9C9C9';
			
		if (tresc == '' || tresc.value.length == 0) tresc.style.borderColor = 'red';
		else tresc.style.borderColor = '#C9C9C9';
	}
	
	else {
		document.forms.kontakt.submit();
	}
}
/*-----------------------------antyspam ---------------------------------------------------*/
    function DisplayMail(Server, Login, Display){
    if ((Display.length == 0) || (Display.indexOf('@')+1)) {
    document.write("<a href=" + "'mai" + "lto:" + Login + "@" + Server + "'>" + Login + "@" + Server + "</a>"); }
    else {
    document.write("<a href="+ "'mai" + "lto:" + Login + "@" + Server + "'>" + Display + "</a>"); }
    }
/*-----------------------------antyspam end---------------------------------------------------*/