<div class="buttons">
<a id="showall">All</a>
<a class="showSingle" target="1">Morning</a>
<a class="showSingle" target="2">APM</a>
<a class="showSingle" target="3">Night</a>
</div>
<div id="div1" class="targetDiv">Lorum Ipsum1</div>
<div id="div2" class="targetDiv">Lorum Ipsum2a</div>
<div id="div2" class="targetDiv">Lorum Ipsum2b</div>
<div id="div3" class="targetDiv">Lorum Ipsum3</div>
$('.showSingle').click(function(){
var self = $(this);
$('.targetDiv').hide();
$('.targetDiv[id=div' + self.attr('target') +']').show();
});
