Creating Slide up/down button

<script type="text/javascript">

$('<button class="btnSlide">Slide up/down</button><div style="width:300px;height:50; border: solid 1px black; background-color:Yellow;text-align:center;" class="divSlide">This toggle can be slide up and down</div>')

    .filter('.btnSlide')

    .click(function(){$('.divSlide').slideToggle("slow");})

    .end()

    .insertAfter('.post-title');

</script>