function randomChildImage() {
	var rand = Math.round(Math.random() * 2 + 1);
	document.write('<img src="/assets/img/template/sketch_child_' + rand + '.gif" alt="" />');
}

function randomAdultImage() {
	var rand = Math.round(Math.random() * 5 + 1);
	document.write('<br /><img src="/assets/img/template/sketch_adult_' + rand + '.gif" alt="" />');
}

function initLeftNavi() {
	var url = window.location.href.substr(window.location.href.lastIndexOf('/'));
	if (url == 'index.php' || url == 'index.html' || url == '')
		url = '/';
	var items = $$('div.leftnaviitem');
	var navis = $$('div.leftnavi');
	for (var x=0; x<items.length; x++) {
		var href = items[x].down().getAttribute('href');
		if (href.substr(0, 7) == 'http://') 
			href = href.substr(href.lastIndexOf('/'));
		if (items[x].down() && href == url) {
			var div = items[x].select('div');
			if (div.length)
				div[0].show();
			return;
		}
	}
	for (var x=0; x<navis.length; x++) {
		var links = navis[x].select('a');
		for (var y=0; y<links.length; y++) {
			var href = links[y].getAttribute('href');
			if (href.substr(0, 7) == 'http://')
				href = href.substr(href.lastIndexOf('/'));
			if (href == url) {
				links[y].up().show();
				links[y].removeClassName('black');
				links[y].addClassName('selected');
				links[y].previous().src = 'assets/img/template/ball-green.gif';
				return;
			}
		}
	}
}

function initRightNavi() {
	var url = window.location.href.substr(window.location.href.lastIndexOf('/'));
	if (url == '/index.php' || url == '/index.html' || url == '')
		url = '/';
	var items = $$('div.rightnaviitem');
	var navis = $$('div.rightnavi');
	for (var x=0; x<items.length; x++) {
		var href = items[x].down().getAttribute('href');
		if (href.substr(0,7) == 'http://')
			href = href.substr(href.lastIndexOf('/'));
		if (items[x].down() && href == url) {
			var div = items[x].select('div');
			if (div.length)
				div[0].show();
			items[x].setStyle({ fontWeight: "bold" });
			return;
		}
	}
	for (var x=0; x<navis.length; x++) {
		var links = navis[x].select('a');
		for (var y=0; y<links.length; y++) {
			var href = links[y].getAttribute('href');
			if (href.substr(0,7) == 'http://')
				href = href.substr(href.lastIndexOf('/'));
			if (href == url) {
				links[y].up().show();
				links[y].setStyle({ fontWeight: "bold" });
				return;
			}
		}
	}
}

Event.observe(window, 'load', initLeftNavi);
Event.observe(window, 'load', initRightNavi);