window.addEvent('domready',function(e){
	$('sort_type_select').addEvent('change', function(){
		if(this.value != "sort_type"){
			$('sort_type').set('send', {
				onComplete: function(response){
					$('content').set('html', response);
				}
			});
			$('sort_type').send();
		} 
	});
});