// swap elements based on ID
function swapElements(sectionID, action)
{
	eClassHide = document.getElementsByClassName('open');
	for (i = 0; i < eClassHide.length; i++) {
		eClassHide[i].style.display = 'none';
	}

	eClassShow = document.getElementsByClassName('closed');
	for (i = 0; i < eClassShow.length; i++) {
		eClassShow[i].style.display = 'block';
	}

	eIDShow = document.getElementById(sectionID+'-open');
	eIDHide = document.getElementById(sectionID+'-closed');
	if (action == 'open')
	{
		eIDShow.style.display = 'block';
		eIDHide.style.display = 'none';
	}
	else
	{
		eIDShow.style.display = 'none';
		eIDHide.style.display = 'block';
	}

}