var A_MENUS = [];
function menu (a_items, a_tpl) {
	if (!document.body || !document.body.style)
		return;
	this.a_config = a_items;
	this.a_tpl = a_tpl;
	this.n_id = A_MENUS.length;
	this.a_index = [];
	this.a_children = [];
	this.expand      = menu_expand;
	this.collapse    = menu_collapse;

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

	this.a_tpl_def = {
		'block_top'  : 16,
		'block_left' : 16,
		'top'        : 20,
		'left'       : 4,
		'width'      : 120,
		'height'     : 22,
		'hide_delay' : 0,
		'expd_delay' : 0,
		'css'        : {
			'inner' : '',
			'outer' : ''
		}
	};
	
	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;

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

	A_MENUS[this.n_id] = this;

	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) {
	clearTimeout(this.o_showtimer);
	var n_tolevel = (n_id ? this.a_index[n_id].n_depth : 0);
	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;
		}
	}
	if (!n_id)
		this.o_current = null;
}
function menu_expand (n_id) {
	if (this.o_hidetimer)
		return;
	var o_item = this.a_index[n_id];
	if (this.o_current && this.o_current.n_depth >= o_item.n_depth)
		this.collapse(o_item.n_id);
	this.o_current = o_item;
	if (!o_item.a_children)
		return;
	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) {
	return Boolean(this.a_index[n_id].a_config[1]);
}
function menu_onmouseout (n_id) {	
	var o_item = this.a_index[n_id];
	o_item.e_oelement.className = o_item.getstyle(0, 0);
	o_item.e_ielement.className = o_item.getstyle(1, 0);	
	o_item.upstatus(7);
	this.o_hidetimer = setTimeout('A_MENUS['+ this.n_id +'].collapse();',
		o_item.getprop('hide_delay'));
}
function menu_onmouseover (n_id) {
	clearTimeout(this.o_hidetimer);
	this.o_hidetimer = null;
	clearTimeout(this.o_showtimer);	
	var o_item = this.a_index[n_id];	
	o_item.upstatus();
	o_item.e_oelement.className = o_item.getstyle(0, 1);
	o_item.e_ielement.className = o_item.getstyle(1, 1);
	if (o_item.getprop('expd_delay') < 0)
		return;
	this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ');',
		o_item.getprop('expd_delay'));

}
function menu_onmousedown (n_id) {	
	var o_item = this.a_index[n_id];
	o_item.e_oelement.className = o_item.getstyle(0, 2);
	o_item.e_ielement.className = o_item.getstyle(1, 2);

	this.expand(n_id);
}
function menu_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.n_id = this.o_root.a_index.length;
	this.o_root.a_index[this.n_id] = this;
	o_parent.a_children[n_order] = this;
	var o_root = this.o_root,
		a_tpl  = this.o_root.a_tpl;
	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');
	document.write (
		'<a id="e' + o_root.n_id + '_'
			+ this.n_id +'o" class="' + this.getstyle(0, 0) + '" 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.getprop('width') + 'px; height: '
			+ this.getprop('height') + 'px; visibility: hidden;'
			+' z-index: ' + this.n_depth + ';" '
			+ '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>\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;
	if (this.a_config.length < 4)
		return;
	this.a_children = [];
	for (var n_order = 0; n_order < this.a_config.length - 3; n_order++)
		new menu_item(this, n_order);
}
function mitem_getprop (s_key) {
	var s_value = null,
		a_level = this.o_root.a_tpl[this.n_depth];
	if (a_level)
		s_value = a_level[s_key];
	return (s_value == null ? this.o_parent.getprop(s_key) : s_value);
}
function mitem_getstyle (n_pos, n_state) {
	var a_css = this.getprop('css');
	var a_oclass = a_css[n_pos ? 'inner' : 'outer'];	
	if (typeof(a_oclass) == 'string')
		return a_oclass;
	for (var n_currst = n_state; n_currst >= 0; n_currst--)
		if (a_oclass[n_currst])
			return a_oclass[n_currst];
}
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);
}