function toggleCollapsableContent(which)
{
	var title = document.getElementById('collapsabletitle_'+which);
	var content = document.getElementById('collapsablecontent_'+which);
	if (content.style.display && content.style.display=='block')
	{
		content.style.display='none';
		title.style.background='none';
	}
	else
	{
		content.style.display='block';
		title.style.backgroundColor='#cccccc';
	}
}