// Title: text horizontal menu

alev0w = new Array(); alev0w[0]=0;
mnum = new Array(); //offsetH
msub = new Array(); //1 - it's have submenu
var a_num_cross = 0; // 0 - calculation cross

// --------------------------------------------------------------------------------
// global collection containing all menus on current page
var A_MENUS = [];

// --------------------------------------------------------------------------------
// menu class
function menu (a_items, a_tpl) {

	// browser check
	if (!document.body || !document.body.style)
		return;

	// store items structure
	this.a_config = a_items;

	// store template structure
	this.a_tpl = a_tpl;

	// get menu id
	this.n_id = A_MENUS.length;

	// declare collections
	this.a_index = [];
	this.a_children = [];

	// assigh methods and event handlers
	this.expand      = menu_expand;
	this.collapse    = menu_collapse;

	this.onclick     = menu_onclick;
	this.onmouseout  = menu_onmouseout;
	this.onmouseover = menu_onmouseover;
	this.onmousedown = menu_onmousedown;

	// default level scope description structure
	this.a_tpl_def = {
		'block_top'  : 16,
		'block_left' : 16,
		'top'        : 20,
		'left'       : 4,
		'width'      : 120,
		'height'     : 25,
		'hide_delay' : 0,
		'expd_delay' : 0,
		'css'        : {
			'inner' : '',
			'outer' : ''
		}
	};

	// assign methods and properties required to imulate parent item
	this.getprop = function (s_key) {
		return this.a_tpl_def[s_key];
	};

	this.o_root = this;
	this.n_depth = -1;
	this.n_x = 0;
	this.n_y = 0;

	// 	init items recursively
	for (n_order = 0; n_order < a_items.length; n_order++)
		new menu_item(this, n_order);

 if (a_num_cross > 0)
 {
 //второй проход ****************************
	// register self in global collection
	A_MENUS[this.n_id] = this;

	// make root level visible
	for (var n_order = 0; n_order < this.a_children.length; n_order++)
		this.a_children[n_order].e_oelement.style.visibility = 'visible';
 }
}

// --------------------------------------------------------------------------------
function menu_collapse (n_id) {
	// cancel item open delay
	clearTimeout(this.o_showtimer);

	// by default collapse to root level
	var n_tolevel = (n_id ? this.a_index[n_id].n_depth : 0);

	// hide all items over the level specified
	for (n_id = 0; n_id < this.a_index.length; n_id++) {
		var o_curritem = this.a_index[n_id];
		if (o_curritem.n_depth > n_tolevel && o_curritem.b_visible) {
			o_curritem.e_oelement.style.visibility = 'hidden';
			o_curritem.b_visible = false;
		}
	}

	// reset current item if mouse has gone out of items
	if (!n_id)
		this.o_current = null;
}

// --------------------------------------------------------------------------------
function menu_expand (n_id) {

	// expand only when mouse is over some menu item
	if (this.o_hidetimer)
		return;

	// lookup current item
	var o_item = this.a_index[n_id];

	// close previously opened items
	if (this.o_current && this.o_current.n_depth >= o_item.n_depth)
		this.collapse(o_item.n_id);
	this.o_current = o_item;

	// exit if there are no children to open
	if (!o_item.a_children)
		return;

	// show direct child items
	for (var n_order = 0; n_order < o_item.a_children.length; n_order++) {
		var o_curritem = o_item.a_children[n_order];
		o_curritem.e_oelement.style.visibility = 'visible';
		o_curritem.b_visible = true;
	}
}

// --------------------------------------------------------------------------------
//
// --------------------------------------------------------------------------------
function menu_onclick (n_id) {
	// don't go anywhere if item has no link defined
	return Boolean(this.a_index[n_id].a_config[1]);
}

// --------------------------------------------------------------------------------
function menu_onmouseout (n_id) {

	// lookup new item's object
	var o_item = this.a_index[n_id];

	// apply rollout
	o_item.e_oelement.className = o_item.getstyle(0, 0) + (msub[n_id] == 1 ? '_folder' : '');
	o_item.e_ielement.className = o_item.getstyle(1, 0);

	// update status line
	o_item.upstatus(7);

	// run mouseover timer
	this.o_hidetimer = setTimeout('A_MENUS['+ this.n_id +'].collapse();',
		o_item.getprop('hide_delay'));
}

// --------------------------------------------------------------------------------
function menu_onmouseover (n_id) {

	// cancel mouseoute menu close and item open delay
	clearTimeout(this.o_hidetimer);
	this.o_hidetimer = null;
	clearTimeout(this.o_showtimer);

	// lookup new item's object
	var o_item = this.a_index[n_id];

	// update status line
	o_item.upstatus();

	// apply rollover
	o_item.e_oelement.className = o_item.getstyle(0, 1);
	o_item.e_ielement.className = o_item.getstyle(1, 1);

	// if onclick open is set then no more actions required
	if (o_item.getprop('expd_delay') < 0)
		return;

	// run expand timer
	this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ');',
		o_item.getprop('expd_delay'));

}

// --------------------------------------------------------------------------------
// called when mouse button is pressed on menu item
// --------------------------------------------------------------------------------
function menu_onmousedown (n_id) {

	// lookup new item's object
	var o_item = this.a_index[n_id];

	// apply mouse down style
	o_item.e_oelement.className = o_item.getstyle(0, 2);
	o_item.e_ielement.className = o_item.getstyle(1, 2);

	this.expand(n_id);
//	this.items[id].switch_style('onmousedown');
}


// --------------------------------------------------------------------------------
// menu item Class
function menu_item (o_parent, n_order) {

	// store parameters passed to the constructor
	this.n_depth  = o_parent.n_depth + 1;
	this.a_config = o_parent.a_config[n_order + (this.n_depth ? 3 : 0)];

	// return if required parameters are missing
	if (!this.a_config) return;

	// store info from parent item
	this.o_root    = o_parent.o_root;
	this.o_parent  = o_parent;
	this.n_order   = n_order;

	// register in global and parent's collections
	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;

	// calculate item's coordinates
	var o_root = this.o_root,
		a_tpl  = this.o_root.a_tpl;

	// assign methods
	this.getprop  = mitem_getprop;
	this.getstyle = mitem_getstyle;
	this.upstatus = mitem_upstatus;
/*
	this.n_x = n_order
		? o_parent.a_children[n_order - 1].n_x + this.getprop('left')
		: o_parent.n_x + this.getprop('block_left');
	this.n_y = n_order
		? o_parent.a_children[n_order - 1].n_y + this.getprop('top')
		: o_parent.n_y + this.getprop('block_top');
*/

//********************************
if (a_num_cross == 0)
 {
//первый проход
	this.n_x = 0;
	this.n_y = -200;
	// generate item's HMTL
	mynazv = (this.a_config[0].substring(0,11)=="<sw_active>") ? this.a_config[0].substring(11,this.a_config[0].length) : this.a_config[0];
   	if (this.n_depth == 0)
   	{	document.write (
		'<a id="e1' + o_root.n_id + '_'
			+ this.n_id +'o" class="' + this.getstyle(0, 0) + '" href="#"'
			+ ' style="position: absolute; height: '
			+ this.getprop('height')  + 'px; visibility: hidden;'
			+' z-index: ' + this.n_depth + ';"><div  id="e1' + o_root.n_id + '_'
			+ this.n_id +'i" class="' + this.getstyle(1, 0) + '">'
			+ mynazv + '</div></a>' + '\n'
		);
	alev0w[n_order+1] = document.getElementById('e1' + o_root.n_id + '_' + this.n_id + 'o').offsetWidth;
   	}
   	else
   	{
	document.write (
		'<a id="e1' + o_root.n_id + '_'
			+ this.n_id +'o" class="' + this.getstyle(0, 0) + '" href="#"'
			+ ' style="position: absolute; top: '
			+ this.n_y + 'px; left: ' + this.n_x + 'px; width: '
			+ this.getprop('width')  + 'px; visibility: hidden;'
			+' z-index: ' + this.n_depth + ';"><div  id="e1' + o_root.n_id + '_'
			+ this.n_id +'i" class="' + this.getstyle(1, 0) + '">'
			+ mynazv + '</div></a>' + '\n'
		);
	}
	this.e_ielement = document.getElementById('e1' + o_root.n_id + '_' + this.n_id + 'i');
	this.e_oelement = document.getElementById('e1' + o_root.n_id + '_' + this.n_id + 'o');

	mnum[this.n_id]=parseInt(document.getElementById('e1' + o_root.n_id + '_'	+ this.n_id +'o').offsetHeight);
	if (this.n_id > 0) {msub[this.n_id - 1] = (this.n_depth > 1 && n_order == 0) ? 1 : 0;}
 }
else
 {
//второй проход
	//определение гориз позиции
	if(n_order)
	{
		myl0left = (this.n_depth == 0) ? alev0w[n_order] : this.getprop('left');
		this.n_x = o_parent.a_children[n_order - 1].n_x + myl0left;
	}
	else
	{	  if(this.n_depth == 0)
	  {		width_main_menu = 0;
		for(var n_alev0w = 0; n_alev0w < alev0w.length; n_alev0w++)
		width_main_menu = width_main_menu + alev0w[n_alev0w];
		this.n_x = (WIDTH_SCREEN - width_main_menu) / 2;
	  }
	  else
	  {		if(o_parent.n_x < (WIDTH_SCREEN - this.getprop('block_left') - this.getprop('width')))
		{
			this.n_x = o_parent.n_x + this.getprop('block_left');
		}
		else
		{
			this.n_x = o_parent.n_x - this.getprop('block_left');
			if(this.n_x > (WIDTH_SCREEN - this.getprop('width') - 2))
			{
				this.n_x = WIDTH_SCREEN - this.getprop('width') - 2;
			}
		}
	  }
	}
	//определение верт  позиции
    if (n_order)
    {
    	if (this.n_depth > 0)
    	{
			myho=mnum[o_parent.a_children[n_order - 1].n_id]-1;
			this.n_y = o_parent.a_children[n_order - 1].n_y + myho;
		}
		else
		{
			this.n_y = o_parent.a_children[n_order - 1].n_y + this.getprop('top');
		}
	}
	else
	{
		this.n_y = o_parent.n_y + this.getprop('block_top');
	}
	// generate item's HMTL
	var sw_active=false;
	if (this.a_config[0].substring(0,11)=="<sw_active>")
	{
		sw_active=true;
		this.a_config[0]=this.a_config[0].substring(11,this.a_config[0].length);
		temp_id=this.getstyle(0, 0).substring(8,this.getstyle(0, 0).length);
	}


	document.write (
		(sw_active ? '<span id="swactive_menu' + temp_id + '">' : '') + '<a id="e' + o_root.n_id + '_'
			+ this.n_id +'o" class="' + this.getstyle(0, 0)
			+ (msub[this.n_id] == 1 ? '_folder' : '')
			+ '" href="' + this.a_config[1] + '"'
			+ (this.a_config[2] && this.a_config[2]['tw'] ? ' target="'
			+ this.a_config[2]['tw'] + '"' : '') + ' style="position: absolute; top: '
			+ this.n_y + 'px; left: ' + this.n_x + 'px; width: '
			+ ((this.n_depth > 0) ? this.getprop('width') : alev0w[n_order+1])
			+ 'px; visibility: hidden;'
			+' z-index: ' + this.n_depth + ';" '
            + (this.a_config[2] && this.a_config[2]['tl'] ?' onclick="javascript: window.open(\'' + this.a_config[1] + '\', \'\', \'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=780,height=550\'); return false;"': 'onclick="return A_MENUS[' + o_root.n_id + '].onclick('
			+ this.n_id + ');')
			+ ';" onmouseout="A_MENUS[' + o_root.n_id + '].onmouseout('
			+ this.n_id + ');" onmouseover="A_MENUS[' + o_root.n_id + '].onmouseover('
			+ this.n_id + ');" onmousedown="A_MENUS[' + o_root.n_id + '].onmousedown('
			+ this.n_id + ');"><div  id="e' + o_root.n_id + '_'
			+ this.n_id +'i" class="' + this.getstyle(1, 0) + '">'
			+ this.a_config[0] + '</div></a>'+(sw_active ? '</span>':'')+'\n'
		);
	this.e_ielement = document.getElementById('e' + o_root.n_id + '_' + this.n_id + 'i');
	this.e_oelement = document.getElementById('e' + o_root.n_id + '_' + this.n_id + 'o');
 }
	this.b_visible = !this.n_depth;

	// no more initialization if leaf
	if (this.a_config.length < 4)
		return;

	// node specific methods and properties
	this.a_children = [];

	// init downline recursively
	for (var n_order = 0; n_order < this.a_config.length - 3; n_order++)
		new menu_item(this, n_order);
}

// --------------------------------------------------------------------------------
// reads property from template file, inherits from parent level if not found
// ------------------------------------------------------------------------------------------
function mitem_getprop (s_key) {

	// check if value is defined for current level
	var s_value = null,
		a_level = this.o_root.a_tpl[this.n_depth];

	// return value if explicitly defined
	if (a_level)
		s_value = a_level[s_key];

	// request recursively from parent levels if not defined
	return (s_value == null ? this.o_parent.getprop(s_key) : s_value);
}
// --------------------------------------------------------------------------------
// reads property from template file, inherits from parent level if not found
// ------------------------------------------------------------------------------------------
function mitem_getstyle (n_pos, n_state) {

	var a_css = this.getprop('css');
	var a_oclass = a_css[n_pos ? 'inner' : 'outer'];

	// same class for all states
	if (typeof(a_oclass) == 'string')
		return a_oclass;

	// inherit class from previous state if not explicitly defined
	for (var n_currst = n_state; n_currst >= 0; n_currst--)
		if (a_oclass[n_currst])
			return a_oclass[n_currst];
}

// ------------------------------------------------------------------------------------------
// updates status bar message of the browser
// ------------------------------------------------------------------------------------------
function mitem_upstatus (b_clear) {
	window.setTimeout("window.status=unescape('" + (b_clear
		? ''
		: (this.a_config[2] && this.a_config[2]['sb']
			? escape(this.a_config[2]['sb'])
			: escape(this.a_config[0]) + (this.a_config[1]
				? ' ('+ escape(this.a_config[1]) + ')'
				: ''))) + "')", 10);
}

// --------------------------------------------------------------------------------
// that's all folks

