Event.observe(window, 'load', function() {
	updateCounter();
	Event.observe('thought', 'keyup', updateCounter);
	Event.observe('detailsBtn', 'click', toggleDetails);
});

function updateCounter(event)
{
	var len = $F('thought').length;
	$('counter').update(100 - len);
	if ( len < 75 )
	{
		$('counter').style.color = null;
	}
	else 
	{
		$('counter').style.color = 'red';
	}
}

function toggleDetails(event)
{
	$('details').show();
}