if ($('sidebar'))
	Sortable.create('sidebar',{dropOnEmpty:true, tag:'div', handle:'handle'});
function updown(element) {
	var e = element.up(0).next('div',0)
	if (e.style.display == 'none' || !e.visible())	{
		new Effect.BlindDown(e, {duration:0.4});
		element.innerHTML = "-";
	}	else	{
		new Effect.BlindUp(e, {duration:0.4});
		element.innerHTML = "+";
	}
}