// JavaScript Document

function showElement(elementId) {
	document.getElementById(elementId).className = 'opened';
}

function hideElement(elementId) {
 	document.getElementById(elementId).className = 'closed';
}

function toggleElement(elementId) {
	if(document.getElementById(elementId).className == 'closed') {
		document.getElementById(elementId).className = 'opened';
	}
	else {
		document.getElementById(elementId).className = 'closed';
	}
}