function refreshfactory(brandId,thisFactoryId){

	var factoryHtml = '<option value="0">请选择</option>';
	if(brandId>0){
		for(var x=0 in factoryArrCache){
			if(factoryArrCache[x].catpid==brandId){
				if(thisFactoryId==factoryArrCache[x].cat_id) factoryHtml+='<option value="'+factoryArrCache[x].cat_id+'" selected="selected">'+factoryArrCache[x].title+'</option>';
				else factoryHtml+='<option value="'+factoryArrCache[x].cat_id+'">'+factoryArrCache[x].title+'</option>';
			}
		}
	}

	$("#factory").html(factoryHtml);
}