function __toggle(elem) {
	var container = document.getElementById(elem);
	if(container.style.display == 'none') {
		container.style.display = 'block';
	} else {
		container.style.display = 'none';
	}
}

function __show(elem) {	
	var container = document.getElementById(elem);
	if(container.style.display == 'none') {
		container.style.display = 'block';
	}
}

function __hide(elem) {
	var container = document.getElementById(elem);
	if(container.style.display != 'none') {
		container.style.display = 'none';
	}
}