function EventsAll_Click() {
	if (document.getElementById("EventsAll").checked) {
		document.getElementById("Dance").checked = true;
		Dance_Click();

		document.getElementById("ClassicalMusic").checked = true;
		ClassicalMusic_Click();

		document.getElementById("ContemporaryMusic").checked = true;
		ContemporaryMusic_Click();

		document.getElementById("MusicalTheatre").checked = true;
		document.getElementById("Opera").checked = true;

		document.getElementById("Theatre").checked = true;
		Theatre_Click();

		document.getElementById("Children").checked = true;

		document.getElementById("Other").checked = true;
		Other_Click();
	}
}

function Dance_Click() {
	var checked = document.getElementById("Dance").checked;
	if (checked) {
		document.getElementById("TableDance").style.display = 'block';
	} else {
		document.getElementById("TableDance").style.display = 'none';
	}
	document.getElementById("Ballet").checked = checked;
	document.getElementById("ContemporaryDance").checked = checked;
}

function ClassicalMusic_Click() {
	var checked = document.getElementById("ClassicalMusic").checked;
	if (checked) {
		document.getElementById("TableClassicalMusic").style.display = 'block';
	} else {
		document.getElementById("TableClassicalMusic").style.display = 'none';
	}
	document.getElementById("ChoralMusic").checked = checked;
	document.getElementById("ContemporaryClassical").checked = checked;
	document.getElementById("ClassicalConcert").checked = checked;
	document.getElementById("PopularClassical").checked = checked;
}

function ContemporaryMusic_Click() {
	var checked = document.getElementById("ContemporaryMusic").checked;
	if (checked) {
		document.getElementById("TableContemporaryMusic").style.display = 'block';
	} else {
		document.getElementById("TableContemporaryMusic").style.display = 'none';
	}

	document.getElementById("PopularMusic").checked = checked;
	document.getElementById("WorldMusic").checked = checked;
	document.getElementById("RockConcert").checked = checked;
	document.getElementById("Cabaret").checked = checked;
}

function Theatre_Click() {
	var checked = document.getElementById("Theatre").checked;
	if (checked) {
		document.getElementById("TableTheatre").style.display = 'block';
	} else {
		document.getElementById("TableTheatre").style.display = 'none';
	}
	document.getElementById("PhysicalTheatre").checked = checked;
	document.getElementById("Comedy").checked = checked;
}

function Other_Click() {
	var checked = document.getElementById("Other").checked;
	if (checked) {
		document.getElementById("TableOther").style.display = 'block';
	} else {
		document.getElementById("TableOther").style.display = 'none';
	}
	document.getElementById("Exhibitions").checked = checked;
	document.getElementById("VisualArt").checked = checked;
	document.getElementById("FreeEvents").checked = checked;
	document.getElementById("SeminarConference").checked = checked;
	document.getElementById("Graduation").checked = checked;
	document.getElementById("Lifestyle").checked = checked;
	document.getElementById("SocialIssues").checked = checked;
	document.getElementById("SchoolsPerformance").checked = checked;

}

function SecondaryEvent_Click(currentName, parentName) {
	if (document.getElementById(currentName).checked) {
		document.getElementById(parentName).checked = true;
	}
}