function validatorrezervace(theForm) {
	var error = "";
	var digits = "0123456789+-";
	
if (theForm.datum.value == "") {
	error += "Vyplňte datum.\n";
}
if (theForm.jmeno.value == "") {
	error += "Vyplňte Vaše jmeno.\n";
}
if (((theForm.email.value.indexOf ('@',0) == -1 || theForm.email.value.indexOf ('.',0) == -1 || theForm.email.value == "@") && theForm.email.value != "") && (theForm.telefon.value == "" || theForm.telefon.value == "+420" || theForm.telefon.value == "+420 ")) {
	error += "Vyplňte alespoň jeden Váš kontakt.\n";
}
if (theForm.otazka.value != "tatar" && theForm.otazka.value != "velve" && theForm.otazka.value != "tarep" && theForm.otazka.value != "kevne" && theForm.otazka.value != "martin" && theForm.otazka.value != "padeset" && theForm.otazka.value != "dvacet" && theForm.otazka.value != "tricet" && theForm.otazka.value != "osmnast" && theForm.otazka.value != "deset" && theForm.otazka.value != "stovka" && theForm.otazka.value != "petset") {
	error += "Zodpovězte správně anti-spamovou otázku.\n";
}
if (error != "") {
	alert(error);
	return (false);
}
else {
}
}