/**
 * treemenu sidebox 
 *
 * @package templateSystem
 * @copyright Copyright 2007 Andrew Berezin eCommerce-Service.com
 * @copyright Copyright 2003-2005 Zen Cart Development Team
 * @copyright Portions Copyright 2004 Medreces medreces@yandex.ru
 * @copyright Portions Copyright http://www.softcomplex.com/products/tigra_menu_tree/
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: treemenu.js 1.0 23.05.2007 11:24 Andrew Berezin andrew@ecommerce-service.com $
 */

function tree (a_items, a_template, cur_cat_url) {
	this.a_tpl      = a_template;
	this.a_config   = a_items;
	this.o_root     = this;
	this.a_index    = [];
	this.o_selected = null;
	this.n_depth    = -1;

	var o_icone = new Image(),
		o_iconl = new Image();
	o_icone.src = a_template['icon_e'];
	o_iconl.src = a_template['icon_l'];
	a_template['im_e'] = o_icone;
	a_template['im_l'] = o_iconl;
	for (var i = 0; i < 220; i++)
		if (a_template['icon_' + i]) {
			var o_icon = new Image();
			a_template['im_' + i] = o_icon;
			o_icon.src = a_template['icon_' + i];
		}
	this.toggle = function (n_id) {	var o_item = this.a_index[n_id]; o_item.open(o_item.b_opened); };
	this.select = function (n_id) { return this.a_index[n_id].select(); };
	this.mout   = function (n_id) { this.a_index[n_id].upstatus(true); this.a_index[n_id].mover_out(true);};
	this.mover  = function (n_id) { this.a_index[n_id].upstatus(); this.a_index[n_id].mover_out()};
		this.find_path_to_item = find_path_to_item;

	this.a_children = [];
	for (var i = 0; i < a_items.length; i++)
		new tree_item(this, i);

	this.n_id = trees.length;
	trees[this.n_id] = this;

	for (var i = 0; i < this.a_children.length; i++) {
		document.write(this.a_children[i].init());
		this.a_children[i].open();
	}

		if(cur_cat_url != 'null') {
			if (this.find_path_to_item(cur_cat_url)) {
				path_to_item[path_to_item.length] = this;
		for (var i = path_to_item.length-1; i >= 0; --i) {
			if(path_to_item[i].a_children.length) {
				trees[path_to_item[i].o_root.n_id].toggle(path_to_item[i].n_id);
				trees[path_to_item[i].o_root.n_id].a_index[path_to_item[i].n_id].mover_out(true);
			} else {
				trees[path_to_item[i].o_root.n_id].select(path_to_item[i].n_id);
			}
				}
			}
		}
}

function find_path_to_item (cat_url, array_path) {
	if(this.a_children) {
		for (var i = 0; i < this.a_children.length; i++) {
			if ( ( this.a_children[i].a_config[1] && this.a_children[i].a_config[1] == cat_url ) || this.a_children[i].find_path_to_item (cat_url)) { path_to_item[path_to_item.length] = this.a_children[i];
				return true;
			} else {
			}
		}
	}
	return false;
}

function tree_item (o_parent, n_order) {
	this.n_depth  = o_parent.n_depth + 1;
	this.a_config = o_parent.a_config[n_order + (this.n_depth ? 3 : 0)];
	if (!this.a_config) return;

	this.o_root    = o_parent.o_root;
	this.o_parent  = o_parent;
	this.n_order   = n_order;
	this.b_opened  = !this.n_depth;

	this.n_id = this.o_root.a_index.length;
	this.o_root.a_index[this.n_id] = this;
	o_parent.a_children[n_order] = this;

	this.a_children = [];
	for (var i = 0; i < this.a_config.length - 2; i++)
		new tree_item(this, i);

	this.get_icon = item_get_icon;
	this.open     = item_open;
	this.select   = item_select;
	this.init     = item_init;
	this.upstatus = item_upstatus;
		this.find_path_to_item = find_path_to_item;
	this.mover_out = item_mover_out;
	this.is_last  = function () { return this.n_order == this.o_parent.a_children.length - 1 };
}

function item_open (b_close) {
	var o_idiv = get_element('i_div' + this.o_root.n_id + '_' + this.n_id);
	if (!o_idiv) return;

	if (!o_idiv.innerHTML) {
		var a_children = [];
		for (var i = 0; i < this.a_children.length; i++)
			a_children[i]= this.a_children[i].init();
		o_idiv.innerHTML = a_children.join('');
	}
	if(o_idiv.style) o_idiv.style.display = (b_close ? 'none' : 'block');

	this.b_opened = !b_close;
	var o_jicon = document.images['j_img' + this.o_root.n_id + '_' + this.n_id],
		o_iicon = document.images['i_img' + this.o_root.n_id + '_' + this.n_id];
	if (o_jicon) o_jicon.src = this.get_icon(true);
	if (o_iicon) o_iicon.src = this.get_icon();
	this.upstatus();
}

function item_select (b_deselect) {
	if (!b_deselect) {
		var o_olditem = this.o_root.o_selected;
		this.o_root.o_selected = this;
		if (o_olditem) o_olditem.select(true);
	}
	var o_iicon = document.images['i_img' + this.o_root.n_id + '_' + this.n_id];
	if (o_iicon) o_iicon.src = this.get_icon();
	get_element('i_txt' + this.o_root.n_id + '_' + this.n_id).style.fontWeight = b_deselect ? 'normal' : '600';

	this.upstatus();
	return Boolean(this.a_config[1]);
}

function item_upstatus (b_clear) {
	window.setTimeout('window.status="' + (b_clear ? '' : this.a_config[0] + (this.a_config[1] ? ' ('+ this.a_config[1] + ')' : '')) + '"', 10);
}

function item_mover_out (b_clear) {
	var o_jicon = document.images['j_img' + this.o_root.n_id + '_' + this.n_id];
	if( o_jicon ) {
		o_jicon.src = this.o_root.a_tpl['icon_' + ((b_clear ? 0 : 128) + (this.a_config[2] ? 64 : 0) + (this.n_depth ? 0 : 32) + (this.a_children.length ? 16 : 0) + (this.a_children.length && this.b_opened ? 8 : 0) + 2 + (this.is_last() ? 1 : 0))];
	}
}

function item_init () {
	var a_offset = [],
		o_current_item = this.o_parent;
	for (var i = this.n_depth; i > 1; i--) {
		a_offset[i] = '<img src="' + this.o_root.a_tpl[o_current_item.is_last() ? 'icon_e' : 'icon_l'] + '" border="0" align="absmiddle">';
		o_current_item = o_current_item.o_parent;
	}
	if(this.a_config[0]=='') {
		return '<HR id=catBoxDivider><table cellpadding="0" cellspacing="0" border="0"></table>' + (this.a_children.length ? '<div id="i_div' + this.o_root.n_id + '_' + this.n_id + '" style="display:none"></div>' : '');
	}
	return '<table cellpadding="0" cellspacing="0" border="0"><tr><td>' + (this.n_depth ? a_offset.join('') + (this.a_children.length ? '<a href="javascript: trees[' + this.o_root.n_id + '].toggle(' + this.n_id + ')" onmouseover="trees[' + this.o_root.n_id + '].mover(' + this.n_id + ')" onmouseout="trees[' + this.o_root.n_id + '].mout(' + this.n_id + ')"><img src="' + this.get_icon(true) + '" border="0" align="absmiddle" name="j_img' + this.o_root.n_id + '_' + this.n_id + '"></a>' : '<img src="' + this.get_icon(true) + '" id="j_img' + this.o_root.n_id + '_' + this.n_id + '" border="0" align="absmiddle">') : '') + '<a href="' + ( this.a_config[1]=='0' ? 'javascript: trees[' + this.o_root.n_id + '].toggle(' + this.n_id + ')' : this.a_config[1] ) + '" target="' + this.o_root.a_tpl['target'] + '" onclick="return ' + (this.a_children[0] ? 'true' : 'trees[' + this.o_root.n_id + '].select(' + this.n_id + ')' ) + '" onmouseover="trees[' + this.o_root.n_id + '].mover(' + this.n_id + ')" onmouseout="trees[' + this.o_root.n_id + '].mout(' + this.n_id + ')" class="' + style_el + '" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absmiddle" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a></td></tr></table><HR id=catBoxDivider>' + (this.a_children.length ? '<div id="i_div' + this.o_root.n_id + '_' + this.n_id + '" style="display:none"></div>' : '');
}

function item_get_icon (b_junction) {
	return this.o_root.a_tpl['icon_' + ((this.a_config[2] && b_junction ? 64 : 0) + (this.n_depth ? 0 : 32) + (this.a_children.length ? 16 : 0) + (this.a_children.length && this.b_opened ? 8 : 0) + (!b_junction && this.o_root.o_selected == this ? 4 : 0) + (b_junction ? 2 : 0) + (b_junction && this.is_last() ? 1 : 0))];
}

var path_to_item = [];
var trees = [];
get_element = document.all ?
	function (s_id) { return document.all[s_id] } :
	function (s_id) { return document.getElementById(s_id) };
load_tree_menu = 1;