// Element einblenden

	function show(id){

		document.getElementById(id).style.visibility = "visible";

	}

	// Element ausblenden

	function hide(id){

		document.getElementById(id).style.visibility = "hidden";

	}

	// Element aktivieren

	function activate(id){

		document.getElementById(id).style.display = "block";

	}

	// Element deaktivieren

	function deactivate(id){

		isActive = false;

		document.getElementById(id).style.display = "none";

	}



	// Dynamisches Submenü

	isActive = false;

	activeId = 0;

	function view(id){

		if(!isActive){

			activate(id);

			activeId = id;

			isActive = true;

		}

		else {

			if(id!=activeId){

				deactivate(activeId);

				view(id);

			}

		}

	}