Cookie change div (pic,text.. et.)

by 3axap

HTML

<div data-some-num="1">Grid 1</div>
<div data-some-num="2">Grid 2</div>
<div data-some-num="3">Grid 3</div>
<button id='control-button'>Button</button>

JavaScript

if(isNaN(localStorage['some-num']) || !localStorage['some-num']){
localStorage['some-num'] = 1;
}

$('[data-some-num]').hide();
$('[data-some-num="'+localStorage['some-num']+'"]').show();

$('#control-button').click(function(){
    var k = localStorage['some-num'];
    k++;
    if(k>3)
        k=1;
    localStorage['some-num'] = k;
    $('[data-some-num]').hide();
    $('[data-some-num="'+k+'"]').show();
});