var menus = [];
	function menu (item_struct, pos, styles) {
		this.item_struct = item_struct;
		this.pos = pos;
		this.styles = styles;
		this.id = menus.length;
		this.items = [];
		this.children = [];
			
		this.add_item = menu_add_item;
		this.hide = menu_hide;
			
		this.onclick = menu_onclick;
		this.onmouseout = menu_onmouseout;
		this.onmouseover = menu_onmouseover;
		this.onmousedown = menu_onmousedown;
			
		var i;
		for (i = 0; i < this.item_struct.length; i++)
			new menu_item(i, this, this);
		for (i = 0; i < this.children.length; i++)
			this.children[i].visibility(true);
		menus[this.id] = this;
	}
	function menu_add_item (item) {
		var id = this.items.length;
		this.items[id] = item;
		return (id);
	}
	function menu_hide () {
		for (var i = 0; i < this.items.length; i++) {
			this.items[i].visibility(false);
			this.items[i].switch_style('onmouseout');
		}
	}
	function menu_onclick (id) {
		var item = this.items[id];
		return (item.fields[1] ? true : false);
	}
	function menu_onmouseout (id) {
		this.hide_timer = setTimeout('menus['+ this.id +'].hide();',
			this.pos['hide_delay'][this.active_item.depth]);
		if (this.active_item.id == id)
			this.active_item = null;
	}
	function menu_onmouseover (id) {
		this.active_item = this.items[id];
		clearTimeout(this.hide_timer);
		var curr_item, visib;
		for (var i = 0; i < this.items.length; i++) {
			curr_item = this.items[i];
			visib = (curr_item.arrpath.slice(0, curr_item.depth).join('_') ==
				this.active_item.arrpath.slice(0, curr_item.depth).join('_'));
			if (visib)
				curr_item.switch_style (
					curr_item == this.active_item ? 'onmouseover' : 'onmouseout');
			curr_item.visibility(visib);
		}
	}
	function menu_onmousedown (id) {
		this.items[id].switch_style('onmousedown');
	}
	function menu_item (path, parent, container) {
		this.path = new String (path);
		this.parent = parent;
		this.container = container;
		this.arrpath = this.path.split('_');
		this.depth = this.arrpath.length - 1;
		var struct_path = '', i;
		for (i = 0; i <= this.depth; i++)
			struct_path += '[' + (Number(this.arrpath[i]) + (i ? 2 : 0)) + ']';
		eval('this.fields = this.container.item_struct' + struct_path);
		if (!this.fields) return;
		
		this.get_x = mitem_get_x;
		this.get_y = mitem_get_y;
		this.init = mitem_init;
		this.visibility = mitem_visibility;
		this.switch_style = mitem_switch_style;
		
		this.id = this.container.add_item(this);
		parent.children[parent.children.length] = this;
		
		this.init();
		this.children = [];
		var child_count = this.fields.length - 2;
		for (i = 0; i < child_count; i++)
			new menu_item (this.path + '_' + i, this, this.container);
		this.switch_style('onmouseout');
	}
	function mitem_init() {
		document.write (
			'<a id="mi_' + this.container.id + '_'
				+ this.id +'" class="m' + this.container.id + 'l' + this.depth 
				+'o" href="' + this.fields[1] + '" style="position: absolute; top: '
				+ this.get_y() + 'px; left: '	+ this.get_x() + 'px; width: '
				+ this.container.pos['width'][this.depth] + 'px; height: '
				+ this.container.pos['height'][this.depth] + 'px; visibility: hidden;'
				+' background: black; color: white; z-index: ' + this.depth + ';" '
				+ 'onclick="return menus[' + this.container.id + '].onclick('
				+ this.id + ');" onmouseout="menus[' + this.container.id + '].onmouseout('
				+ this.id + ');" onmouseover="menus[' + this.container.id + '].onmouseover('
				+ this.id + ');" onmousedown="menus[' + this.container.id + '].onmousedown('
				+ this.id + ');"><div class="m'  + this.container.id + 'l' + this.depth + 'i">'
				+ this.fields[0] + "</div></a>\n"
			);
		this.element = document.getElementById('mi_' + this.container.id + '_' + this.id);
	}
	function mitem_visibility(make_visible) {
		if (make_visible != null) {
			if (this.visible == make_visible) return;
			this.visible = make_visible;
			if (make_visible)
				this.element.style.visibility = 'visible';
			else if (this.depth)
				this.element.style.visibility = 'hidden';
		}
		return (this.visible);
	}
	function mitem_get_x() {
		var value = 0;
		for (var i = 0; i <= this.depth; i++)
			value += this.container.pos['block_left'][i]
			+ this.arrpath[i] * this.container.pos['left'][i];
		return (value);
	}
	function mitem_get_y() {
		var value = 0;
		for (var i = 0; i <= this.depth; i++)
			value += this.container.pos['block_top'][i]
			+ this.arrpath[i] * this.container.pos['top'][i];
		return (value);
	}
	function mitem_switch_style(state) {
		if (this.state == state) return;
		this.state = state;
		var style = this.container.styles[state];
		for (var i = 0; i < style.length; i += 2)
			if (style[i] && style[i+1])
				eval('this.element.style.' + style[i] + "='" 
				+ style[i+1][this.depth] + "';");
	}