hostname = "forum.maqs-inc.com";threads_no = "";
/*
 *  onload 
 * 
 */
$(function(){
	var initial_parent_id = 0;

	// init interface
	init_category_form();


        load_each_category(initial_parent_id);

        $("select#category_layer01").change(function(){
                //alert($(this).val());
                //load_each_category($(this).val());

                //set second category list
                init_select_options("category_layer02");
                second_layer = get_category_id_list($(this).val());
                set_json_to_option(second_layer,"category_layer02");


                //set third  category list
                init_select_options("category_layer03");
                if (second_layer.length > 0) {
                        third_layer = get_category_id_list(second_layer[0].category_id);
                        set_json_to_option(third_layer,"category_layer03");
                }
        });

        $("select#category_layer02").change(function(){
                //alert($(this).val());
                //load_each_category($(this).val());

                //set third category list
                init_select_options("category_layer03");
                third_layer = get_category_id_list($(this).val());
                set_json_to_option(third_layer,"category_layer03");


        });


	//init buttons
	$('a.btnChange1').click(function(){
		first_id  = $("#boxPopupCategory  select#category_layer01").val();	
		second_id = $("#boxPopupCategory  select#category_layer02").val();	
		third_id  = $("#boxPopupCategory  select#category_layer03").val();	
		threads_no;	
		
		var post_data = {
			category_first_id  : first_id,
			category_second_id : second_id,
			category_third_id  : third_id,
			threads_id         : threads_no
		}

		$.ajax({
			url     :  './exec/threads/category_upd.php',
			type    : 'POST',
			data    : post_data,
			dataType: 'text',
			timeout : 4000,
			error   : function(rtn) {
				//alert("Error occurred: cannot update categories of the thread.");
			},
			success : function(rtn) {
				$('form#logingo').submit();
			}
		});

	});






});





/*
 *
 *
 */
function category_change(threads_id,
                         category_first_id,category_first_name,
			 category_second_id,category_second_name,
			 category_third_id,category_third_name
			){


	// set click action

	// set each values to each category select

	$("span#category_first_name").text(category_first_name);
	$("span#category_second_name").text(category_second_name);
	$("span#category_third_name").text(category_third_name);

	$('#boxPopupCategory').dialog("open");

	threads_no = threads_id;	
}


/*
 *
 *
 */
function init_category_form() {

	$('#boxPopupCategory').dialog({
		autoOpen: false,
		resizable: false,
		width: 600,
		height: 350,
		modal: true,
		overlay: {
			backgroundColor: '#999',
			opacity: '0.5'
		}
	});
}



//
// set each select options of category
//
function load_each_category(parent_id){

        //set first  category list
        first_layer = get_category_id_list(parent_id);
        init_select_options("category_layer01");
        set_json_to_option(first_layer,"category_layer01");


        //set second category list
        init_select_options("category_layer02");
        if (first_layer.length > 0) {
                second_layer = get_category_id_list(first_layer[0].category_id);
                set_json_to_option(second_layer,"category_layer02");
        }


        //set third  category list
        init_select_options("category_layer03");
        if (second_layer.length > 0) {
                third_layer = get_category_id_list(second_layer[0].category_id);
                set_json_to_option(third_layer,"category_layer03");
        }








}

//
//  Set json to select option
//
//
function set_json_to_option(json,cssid) {

        var cnt = json.length;
        var str;

        cssstr = "select#" + cssid + "";

        for (i = 0; i < cnt; i++){
                str  = "<option value='";
                str += json[i].category_id;
                str += "'>";
                str += json[i].name;
                str += "</option>\n";
                $(cssstr).append(str);
        }


}

//
// Initialize select option
//
//
function init_select_options(cssid) {
        str = "select#" + cssid + "";
        $(str).empty();

}


//
//  get_category_id_list
// return arr[0][name]
//        arr[0][category_id]
function get_category_id_list(parent_id) {
        if (parent_id == undefined ){
        //if (parent_id == undefined || typeof(parent_id) != "number"){
                return ;
        }
        //alert (parent_id);

        var rtn;
        // DBからparent_idが該当のものを持ってくる
        target_url = "./exec/category/get_category_list.php?parent_id="
                   +  parent_id;
        $.ajax({
                url: target_url,
                type: 'POST',
                //dataType: 'text',
                dataType: 'json',
                async: false,
                timeout: 6000,
                error: function(){
                        //alert(parent_id );
                        alert('Error occurred: get_category_list().' );
                },
                success: function(json){

                        rtn = json;

                }
        });

        //init_buttons();

        return eval(rtn);
}