function hideElement(element)
{
	document.getElementById(element).style.display = 'none';
}
function hideElementAndButtons(element)
{
	hideElement(element);
	hideElement(element + '-collapser');
	hideElement(element + '-expander');
}
function showElement(element)
{
	document.getElementById(element).style.display = 'block';	
}
function hideAllSections()
{
	hideElementAndButtons('readSection');
	hideElementAndButtons('listenSection');
	hideElementAndButtons('laughSection');
	hideElementAndButtons('connectSection');
	hideElementAndButtons('consumeSection');
}
function collapseAllSections()
{
	hideAllSections();
	showElement('readSection-expander');
	showElement('listenSection-expander');
	showElement('laughSection-expander');
	showElement('connectSection-expander');
	showElement('consumeSection-expander');
}
function loadPage()
{
	collapseAllSections()
	if (!isMobileDevice())
	{
		expandSection('readSection');
	}
}

function expandSection(section)
{
	collapseAllSections();
	showElement(section);
	hideElement(section + '-expander');
	showElement(section + '-collapser');
}
function collapseSection(section)
{
	hideElement(section);
	showElement(section + '-expander');
	hideElement(section + '-collapser');
}

function isMobileDevice() {
    return (typeof window.orientation !== "undefined") || (navigator.userAgent.indexOf('IEMobile') !== -1);
};