// Title: tigra menu
// Description: See the demo at url
// URL: http://www.softcomplex.com/products/tigra_menu/
// Version: 1.0
// Date: 01-09-2002 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>
// Notes: Registration needed to use this script on your web site.
//     Registration for this version (1.0) is free of charge.
//    See official site for details
// Got questions - visit forum http://www.softcomplex.com/products/tigra_menu/forum/

var menus = [];

// --- menu class ---
function menu (item_struct, pos, styles) {
    // browser check
    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');
}
// --- menu item Class ---
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;
    // get pointer to item's data in the structure
    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;
    
    // assign methods    
    this.get_x = mitem_get_x;
    this.get_y = mitem_get_y;
    // these methods may be different for different browsers (i.e. non DOM compatible)
    this.init = mitem_init;
    this.visibility = mitem_visibility;
    this.switch_style = mitem_switch_style;
    
    // register in the collections
    this.id = this.container.add_item(this);
    parent.children[parent.children.length] = this;
    
    // init recursively
    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] + "';");
}
// that's all folks