var form = document.form;

function change_service (service) {
	var form = document.form;
	form.hidden_service.value = service;
	
//	form.category1.length = 0;
//	form.category2.length = 0;
	
//	form.category1.options[0] = new Option("1´Ü°è ºÐ·ù ¼±ÅÃ", "");
//	form.category2.options[0] = new Option("2´Ü°è ºÐ·ù ¼±ÅÃ", "");
	
	set_category (form.category1, service, '');
}

function set_category (obj, service, category) {
	var form = document.form;
	if (!(category == "" && obj == form.category2)) {
		obj.length = 0;
		if (obj == form.category1) {
			obj.options[0] = new Option("1´Ü°è ºÐ·ù ¼±ÅÃ", "");
		} else if (obj == form.category2) {
			obj.options[0] = new Option("2´Ü°è ºÐ·ù ¼±ÅÃ", "");
		}
		for (i=0, index=1; i<arr_category.length; i++) {
			if (arr_category[i][0] == service && arr_category[i][3] == category) {
				obj.options[index] = new Option (arr_category[i][2], arr_category[i][1]);
				index++;
			}
		}
	}
}

function do_action (mode, value) {
	var form = document.form;
	form.mode.value = mode.toUpperCase();
	form.target = "";

	if (mode == "search") {
		form.page.value = value;
		form.action = "faq_list.php";
	}
	else if (mode == "list") {
		form.page.value = value;
		form.action = "faq_list.php";
	}
	else if (mode == "view") {
		form.seq_no.value = value;
		form.action = "faq_view.php";
	}
	else {
		return;
	}
	
	form.submit ();
}