function showPrev() {
	var previousSibling = $('myListItem').getPrevious();
	previousSibling.setStyle('color', 'red');
}

function showNext() {
	var nextSibling = $('myListItem').getNext();
	nextSibling.setStyle('color', 'red');
}

function showNextAll() {
	var nextSiblings = $('myOtherListItem').getAllNext();
	nextSiblings.setStyle('color', 'red');
}

function showPrevAll() {
	var previousSiblings = $('myOtherListItem').getAllPrevious();
	previousSiblings.setStyle('color', 'red');
}

function showParent() {
	var parent = $('myOtherListItem').getParent();
	parent.setStyle('list-style', 'katakana-iroha');
}

function showChildren() {
	var children = $('myList').getChildren();
	children.setStyle('color', 'red');
}

function showSelected() {
	var country = $('country-select').getSelected();
	alert(country.get('value'));
}

function showString() {
	var myFormString = $('myForm').toQueryString();
	alert(myFormString);
}

function emptyChildren() {
	$('myList').empty();
}
	
window.addEvent('domready', function() {
    $('myButton').addEvent('click', showPrev);
    $('myButton2').addEvent('click', showNext);
    $('myButton3').addEvent('click', showPrevAll);
    $('myButton4').addEvent('click', showNextAll);
    $('myButton5').addEvent('click', showParent);
    $('myButton6').addEvent('click', showChildren);
    $('myButton7').addEvent('click', emptyChildren);
    $('myButton8').addEvent('click', showSelected);
    $('myButton9').addEvent('click', showString);
});