function checkComm() {
	var authorObj = document.getElementById("authorname");
	var msgObj = document.getElementById("commentMessage");
	var yearObj = document.getElementById("year");
	if ((authorObj.value=="") || (msgObj.value=="") || (yearObj.value=="")) {
		alert("Musíte vyplnit všechna pole");
		return false;
	} else {
		return true;
	}
}

function hideAntispam() {
	var rowObj = document.getElementById("spamcheck");
	rowObj.style.display="none";
	var yearObj = document.getElementById("year");
	var d = new Date();
	yearObj.value=d.getFullYear();
}