Как сделать при нажатии кнопки вывод всех новостей AJAX?

<button data-show-ajax=".block">Показать все</button>
<div class="block" style="display:none">
{custom category="1,2,3" template="shortstory" order="title" sort="desc" from="15"}
</div>

$('[data-show-ajax]').on('click touch', function(event) {
	event.preventDefault();
	$($(this).attr('data-show-ajax')).show();
	$(this).hide();
});

<button onclick="$(this).next('div').show();$(this).hide();">Показать все</button>
<div style="display:none">
{custom category="1,2,3" template="shortstory" order="title" sort="desc" from="15"}
</div>

<button data-show-button="myBlock">Показать все</button>
<div data-show-block="myBlock" style="display:none">
	{custom category="1,2,3" template="shortstory" order="title" sort="desc" from="15"}
</div>

$.each($('[data-show-block]'), function() {
	if ($(this).children().length <= 15) {
		var id = $(this).attr('data-show-block');
		$('[data-show-button="'+ id +'"]').hide();
	}
});

$('[data-show-button]').on('click touch', function(event) {
	event.preventDefault();
	var id = $(this).attr('data-show-button');
	$('[data-show-block="'+ id +'"]').show();
	$('[data-show-button="'+ id +'"]').hide();
});