var show = function (elem) {
	elem.style.display = 'block';
};

var hide = function (elem) {
	elem.style.display = 'none';
};

var toggle = function (elem) {

	// If the element is visible, hide it
	if (window.getComputedStyle(elem).display === 'block') {
		hide(elem);
		return;
	}

	// Otherwise, show it
	show(elem);

};

var montruMenuo = function () {
	var objekto = document.querySelector('#menupral');
	toggle(objekto);
}