// Artworks => Navigation => Kategorien
function toggle_techniks(){
	var element = document.getElementById('toggle_techniks')
	if (element.style.display == 'none') {
		element.style.display = 'block'
	} else {
		element.style.display = 'none'
	}
}

function toggle_arts(){
	var element = document.getElementById('toggle_arts')
	if (element.style.display == 'none') {
		element.style.display = 'block'
	} else {
		element.style.display = 'none'
	}
}

function toggle_styles(){
	var element = document.getElementById('toggle_styles')
	if (element.style.display == 'none') {
		element.style.display = 'block'
	} else {
		element.style.display = 'none'
	}
}

// Mybutterbrot
function toggle_add_artw(){
	var element = document.getElementById('toggle_add_artw')
	if (element.style.display == 'none') {
		element.style.display = 'block'
	} else {
		element.style.display = 'none'
	}
}

function toggle_add_exhi(){
	var element = document.getElementById('toggle_add_exhi')
	if (element.style.display == 'none') {
		element.style.display = 'block'
	} else {
		element.style.display = 'none'
	}
}

// Mybutterbrot => Artworks => Statistik
function toggle_stats(control){
var element = document.getElementById(control);
	if(element.style.display == "none"){
		element.style.display = "block";
	} else {
		element.style.display = "none";
	}
}