var path = '/images/';
var TREE_TPL = {

	'target'  : '_self',	//dopuszczalne wartosci: _blank, _parent, _search, _self,  _top

	'icon_e'  : path + 'tree_empty.gif', // pusty
	'icon_l'  : path + 'tree_line.gif',  // linia

	'icon_32' : path + 'tree_root.gif',   // glowny zwykly
	'icon_36' : path + 'tree_root.gif',   // glowny wybrany

	'icon_48' : path + 'tree_root.gif',   // glowny zwykly
	'icon_52' : path + 'tree_root.gif',   // glowny wybrany
	'icon_56' : path + 'tree_root.gif',   // glowny otwarty
	'icon_60' : path + 'tree_root.gif',   // glowny wybrany i otwarty

	'icon_16' : path + 'tree_node.gif', // wezel zwykly
	'icon_20' : path + 'tree_nodeopen.gif', // wezel wybrany
	'icon_24' : path + 'tree_nodeopen.gif', // wezel otwarty
	'icon_28' : path + 'tree_nodeopen.gif', // wezel wybrany i otwarty

	'icon_0'  : path + 'tree_leaf.gif', // lisc zwykly
	'icon_4'  : path + 'tree_leaf.gif', // lisc wybrany

	'icon_2'  : path + 'tree_joinbottom.gif', // dla liscia
	'icon_3'  : path + 'tree_join.gif',       // dla ostatniego liscia
	'icon_18' : path + 'tree_plusbottom.gif', // dla zamknietego wezla
	'icon_19' : path + 'tree_plus.gif',       // dla ostatniego zamknietego wezla
	'icon_26' : path + 'tree_minusbottom.gif',// dla otwartego wezla
	'icon_27' : path + 'tree_minus.gif'       // dla ostatniego otwartego wezla
};
/////////////////////////////////////////////////////////////////////////////////////////////
function tree (a_items, a_template, id_selected) {
	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 < 64; 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.mover  = function (n_id) { this.a_index[n_id].upstatus() };

	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();
	}
//alert(trees.length + ' = ' + a_items.length + ' = ' + this.a_children.length);
	item_checked(this, id_selected);
}
/////////////////////////////////////////////////////////////////////////////////////////////
function item_checked (object, nr) {
	var licz = 0;
	var tab = [];

	while (nr > 0){
		licz++;
		tab[licz] = object.a_index[nr];
		nr = tab[licz].o_parent.n_id;
	}

	for (var i = licz; i > 0 ; i--) {
		tab[i].open(tab[i].b_opened);
		if (i == 1) { tab[i].select(); }
	}
}
/////////////////////////////////////////////////////////////////////////////////////////////
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 ? 2 : 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.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('');
	}
	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' : 'bold';
	
	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);
	window.setTimeout('window.status="' + (b_clear ? '' : (this.a_config[1] ? this.a_config[1] : '')) + '"', 10);
}
/////////////////////////////////////////////////////////////////////////////////////////////
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="absbottom">';
		o_current_item = o_current_item.o_parent;
	}

	if (this.a_config[1] == 'catalog') {
		linkowanie = '<img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im"><a class=tree>' + this.a_config[0] + '</a>' ;
	} else {
//		linkowanie = '<a class=tree href="' + this.a_config[1] + '" target="' + this.o_root.a_tpl['target'] + '" onclick="return trees[' + this.o_root.n_id + '].select(' + this.n_id + ')" ondblclick="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 + ')" class="t' + this.o_root.n_id + 'i" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a>'
		//linkowane tylko produkty, a kategorie tylko rozwijane
		if (this.a_config[1].indexOf('product_id',0) < 0) {
//			linkowanie = '<a class=tree href="' + this.a_config[1] + '" target="' + this.o_root.a_tpl['target'] + '" onclick="return trees[' + this.o_root.n_id + '].select(' + this.n_id + ')" ondblclick="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 + ')" class="t' + this.o_root.n_id + 'i" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a>'
			linkowanie = '<a class=tree href="javascript: trees[' + this.o_root.n_id + '].toggle(' + this.n_id + ')" target="' + this.o_root.a_tpl['target'] + '" onclick="return trees[' + this.o_root.n_id + '].select(' + this.n_id + ')" ondblclick="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 + ')" class="t' + this.o_root.n_id + 'i" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a>'
		} else {
			linkowanie = '<a class=tree href="' + this.a_config[1] + '" target="' + this.o_root.a_tpl['target'] + '" onclick="return trees[' + this.o_root.n_id + '].select(' + this.n_id + ')" ondblclick="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 + ')" class="t' + this.o_root.n_id + 'i" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a>'
		}
	}

	return '<table cellpadding="0" cellspacing="0" border="0"><tr><td nowrap>' + (this.n_depth ? a_offset.join('') + (this.a_children.length
		? '<a class=tree 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="absbottom" name="j_img' + this.o_root.n_id + '_' + this.n_id + '"></a>'
		: '<img src="' + this.get_icon(true) + '" border="0" align="absbottom">') : '')
		+ linkowanie +'</td></tr></table>' + (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.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 result = (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);
	if (result == 4 || result == 0)	{
		if (this.a_config[1].indexOf('product_id',0) < 0) {result = result + 16;}
	}
	if (result == 16 || result == 20 || result == 24 || result == 28)	{
		if (this.a_config[1].indexOf('categories',0) < 0 && this.a_config[1].indexOf('branch',0) < 0 ) {result = result + 32;}
	}
	return this.o_root.a_tpl['icon_' + result];
}
/////////////////////////////////////////////////////////////////////////////////////////////

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