$(document).ready(function() {
	$('div.sidenav:eq(0)> div').hide();
	$('div.sidenav:eq(0)> h4').hover(function() {
		hideElements();
		$(this).addClass('opened').next('div:hidden').slideDown('fast').siblings('div:visible').slideUp('fast');
	}, function() {
		
	});
	
	$('div.sidenav:eq(0)> h4.opened').next('div:hidden').slideDown('fast');
});

function hideElements() {
	var container = $('div.sidenav');
	var headers = container.children();
	for ( var i = 0; i < headers.length;i++ ) {
		if ( headers[i].tagName == "H4" ) {
			headers[i].className = "";
		}
	}
};