// Barra di menu

function showMenu() {
	document.getElementById("menuContainer").style.display = "";
	document.getElementById("menuBarShowButton").style.display = "none";
	document.getElementById("menuBarHideButton").style.display = "";
}

function hideMenu() {
	document.getElementById("menuContainer").style.display = "none";
	document.getElementById("menuBarHideButton").style.display = "none";
	document.getElementById("menuBarShowButton").style.display = "";
}

/* Form */

function checkAll(checkBoxGroup) {
	if(typeof checkBoxGroup.length == 'number') {
		for(i = 0; i < checkBoxGroup.length; i++) {
			checkBoxGroup[i].checked = true; 
		}
	} else {
		checkBoxGroup.checked = true;
	}
}

/* Show & Hide objects */

function show(objectId) {
	document.getElementById(objectId).style.display = "";
}

function hide(objectId) {
	document.getElementById(objectId).style.display = "none";
}

function showHide(objectId) {
	var object = document.getElementById(objectId);
	object.style.display = (object.style.display == 'none') ? "" : "none";
}

function isHidden(objectId) {
	return (document.getElementById(objectId).style.display == "none");
}