$(document).ready(function()     {

	$('select#job_type').change(function() {
		$('select#salary').empty();
        job_type = $(this).val();
        if (job_type == 0) {
            $('select#salary').append('<option value = "0">All salaries</option>');
        }
        else { 
            $.each(salary_array[job_type], function(key, value) {
                $('select#salary').append('<option value = "'+key+'">'+value.value+'</option>');
            });
        }
	});
    
    $('select#category').change(function() {
		$('select#subcategory').empty();
        cat_type = $(this).val();
        if (cat_type == 0) {
            $('select#subcategory').append('<option value = "0">All subcategories</option>');
        }
        else { 
            $('select#subcategory').append('<option value = "0">All subcategories</option>');
            $.each(category_array[cat_type]['subcats'], function(key, value) {
                $('select#subcategory').append('<option value = "'+key+'">'+value+'</option>');
            });
        }
	});

});