var last_part_selected = 'skaladrom';

function show_main() {
	document.getElementById('content_main').style.display = '';
	document.getElementById('content_park').style.display = 'none';
	document.getElementById('content_about_us').style.display = 'none';

	document.getElementById('main_button').className = 'active';
	document.getElementById('park_button').className = '';
	document.getElementById('about_us_button').className = '';
	_gaq.push(['_trackPageview', '/main']);
}

function show_park(part) {
	document.getElementById('content_main').style.display = 'none';
	document.getElementById('content_park').style.display = '';
	document.getElementById('content_about_us').style.display = 'none';

	document.getElementById('main_button').className = '';
	document.getElementById('park_button').className = 'active';
	document.getElementById('about_us_button').className = '';
	if (part == undefined) {
		part = last_part_selected;
	}
	partButtons = document.getElementById('park_parts_buttons').children[0].children;
	for(bi in partButtons) {
		if (partButtons[bi].id == part + '_button') {
			partButtons[bi].className = 'active';
			document.getElementById('park_part_title').children[0].innerHTML = partButtons[bi].innerHTML;
		} else {
			partButtons[bi].className = '';
		}
	}
	document.getElementById('description').innerHTML = document.getElementById(part+"_description").innerHTML;
	document.getElementById('part_image').src = resources_prefix + 'images/content/park_'+part+'.jpg';
	last_part_selected = part;
	_gaq.push(['_trackPageview', '/park/'+part]);
}

function show_about_us() {
	document.getElementById('content_main').style.display = 'none';
	document.getElementById('content_park').style.display = 'none';
	document.getElementById('content_about_us').style.display = '';

	document.getElementById('main_button').className = '';
	document.getElementById('park_button').className = '';
	document.getElementById('about_us_button').className = 'active';
	_gaq.push(['_trackPageview', '/about_us']);
}