$(document).ready(function() {
	$('#used-search-type').change(function() {
		var categoryId = $(this).val();
		if ($(this).val()) {
			$.getJSON(
					URL_CMSROOT+'emmetts/ajax/used-sub-category-list',
					{ 'categoryId' : categoryId, '_overlay' : false},
					// data is json object
					function (data) {
						$('#used-search-sub-type').html(data.html).show();
					}
				);
		}
	});
				
});