function ch2input(fname) {
	var curdat = document.getElementById(fname).innerHTML;
	document.getElementById(fname).innerHTML = '<input type="text" id="input_'+fname+'" value="'+curdat+'" class="napis2" style="width:200px;" >';
	document.getElementById('input_'+fname).focus();
	document.getElementById('guzik_'+fname).style.display='none';
}

function input2ch(fname) {
	var fval = document.getElementById('input_'+fname).value;
	document.getElementById(fname).innerHTML=fval;
	document.getElementById('guzik_'+fname).style.display='inline';
}

function sethiddenval(fname) {
	var valpol = document.getElementById(fname).innerHTML;
	document.getElementById(fname).innerHTML = valpol + '<input type="hidden" name="'+fname+'" value="'+valpol+'">';
}

function rezsubmit() {
	if (document.getElementById('input_data_od')) {
		input2ch('data_od');
	}
	if (document.getElementById('input_data_do')) {
		input2ch('data_do');
	}
	
	if (document.getElementById('imie').value=='' ||
		document.getElementById('nazwisko').value=='' || 
		document.getElementById('adres').value=='' || 
		document.getElementById('telefon').value=='' || 
		document.getElementById('email').value=='') 
	{
		alert('Wypełnij wszystkie pola formularza!');
		return false;
	} else {
		sethiddenval('data_od');
		sethiddenval('data_do');
	
	}
	
	return true;
}