// JavaScript Document
function toggle_visibility(id) {
	var e = document.getElementById(id);
	if(e.style.display == 'none'){
		show(id);
	} else {
		hide(id);
	}
}
function toggle_multiple_visibility(content,showbutton,hidebutton) {
	var e = document.getElementById(content);
	if(e.style.display == 'none'){
		show(content);
		hide(showbutton);
		show(hidebutton);
	} else {
		hide(content);
		show(showbutton);
		hide(hidebutton);
	}
}
function show(id) {
	var e = document.getElementById(id);
	e.style.display = 'inline';
	e.style.visibility = 'visible';
}
function hide(id) {
	var e = document.getElementById(id);
	e.style.display = 'none';
	e.style.visibility = 'hidden';
}