<select id="deneme">
<option value="1">Kategori1</option>
<option value="2">Kategori2</option>
</select>

<div id="sonuc"></div>

<script>
$(document).ready(function(){
	$('#deneme').on('change',function(e){
		e.preventDefault();
		var result = $(this).val();
		$('#sonuc').html(result);
	});
});
</script>