// Title: tigra menu
// Description: See the demo at url
// URL: http://www.softcomplex.com/products/tigra_menu/
// Version: 2.0 (commented source)
// Date: 04-05-2003 (mm-dd-yyyy)
// Tech. Support: http://www.softcomplex.com/forum/forumdisplay.php?fid=40
// Notes: This script is free. Visit official site for further details.

// --------------------------------------------------------------------------------
// 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 = {
		'type' : 0,
		'size' : 100,
		'delimiter' : '',
		'block_top'  : 16,
		'block_left' : 16,
		'top'        : 20,
		'left'       : 4,
		'width'      : 120,
		'height'     : 22,
		'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;
	
	this.type = (this.a_config[2] && this.a_config[2]['type']) ? this.a_config[2]['type'] : this.getprop('type');
	this.size = (this.a_config[2] && this.a_config[2]['size']) ? this.a_config[2]['size'] : this.getprop('size');
	this.delimiter = (this.a_config[2] && this.a_config[2]['delimiter']) ? this.a_config[2]['delimiter'] : this.getprop('delimiter');
	this.k_id = 'k' + this.n_id;

	// 	init items recursively

	document.write('<div id="' + this.k_id + '" style="position:relative;' + ((this.type == 1) ? ' height:' : ' width:') + this.size + 'px;float:left;top:0px;left:0px;">');
	document.write('<table border="0" cellspacing="0" cellpadding="0">');
	
	if (this.type == 1) {
	    document.write('<tr>');
	}
		
	for (var n_order = 0; n_order < a_items.length; n_order++) {
		new menu_item(this, n_order);
	}

	if (this.type == 1) {
	    document.write('</tr>');
	}
	document.write('</table>');
	document.write('</div>');

	// register self in global collection
	A_MENUS[this.n_id] = this;
	
	// второй прогон для инициализации "детей"
	for (var n_order = 0; n_order < this.a_children.length; n_order++) {
//	window.alert(n_order);
		menu_item_2(this, n_order);
//	window.alert(n_order);
	}

	// 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;
			o_curritem.e_kelement.style.visibility='hidden';
		}
	}

	// 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;

	var kelement = document.getElementById(o_item.k_id);
	if (kelement)
	    kelement.style.visibility='visible';
	
	// 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];

	// hVal & stork dirty hack!!!

	highlight_dirty_hack(o_item, 0);

	// apply rollout
	o_item.e_oelement.className = o_item.getstyle(0, 0);
	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];

	// hVal & stork dirty hack!!!
	
	highlight_dirty_hack(o_item, 1);

	// 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);
	
//        var x = o_item.e_kelement.offsetLeft + o_item.e_oelement.offsetLeft + ((o_item.o_parent.type == 1) ? 0 : o_item.o_parent.size);
//	var y = o_item.e_kelement.offsetTop + o_item.e_oelement.offsetTop + ((o_item.o_parent.type == 1) ? o_item.o_parent.size : 0 );

        var x = o_item.e_oelement.offsetParent.offsetLeft + o_item.e_oelement.offsetLeft + ((o_item.o_parent.type == 1) ? 0 : o_item.o_parent.size);
	var y = o_item.e_oelement.offsetParent.offsetTop + o_item.e_oelement.offsetTop + ((o_item.o_parent.type == 1) ? o_item.o_parent.size : 0 );
	
	var kelement = document.getElementById(o_item.k_id);

//window.alert(kelement.id + ' o_item.e_kelement.offset L T ' + o_item.e_kelement.offsetLeft + ' ' + o_item.e_kelement.offsetTop);
//window.alert(kelement.id + ' o_item.e_oelement.offset L T ' + o_item.e_oelement.offsetLeft + ' ' + o_item.e_oelement.offsetTop);
//window.alert(kelement.id + ' o_item.o_parent.size ' + o_item.o_parent.size);
//window.alert(kelement.id + ' ' + x + ' ' + y);
//window.alert(kelement.id + ' ' + o_item.e_oelement.offsetLeft + ' ' + o_item.e_oelement.offsetParent.nodeName );


	if (kelement) {
	    kelement.style.left = x;
	    kelement.style.top = y;
	}
	
	// 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;
	var zindex = this.n_depth + 5;
//	this.a_config = o_parent.a_config[n_order + (this.n_depth ? 3 : 0)];
	this.a_config = o_parent.a_config[n_order + 3 ];
	// return if required parameters are missing
	if (!this.a_config) return;
//window.alert(this.a_config[0]);
	// 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.type = ((typeof(this.a_config[2]) != undefined) && (typeof(this.a_config[2]['type']) != undefined)) ? this.a_config[2]['type'] : this.getprop('type');
//window.alert(this.a_config.length);

	this.type = (this.a_config[2] && this.a_config[2]['type']) ? this.a_config[2]['type'] : this.getprop('type');
	this.size = (this.a_config[2] && this.a_config[2]['size'])? this.a_config[2]['size'] : this.getprop('size');
	this.delimiter = (this.a_config[2] && this.a_config[2]['delimiter'])? this.a_config[2]['delimiter'] : this.getprop('delimiter');

	this.k_id = this.o_parent.k_id+'c'+this.n_id;

	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');

	// generate item's HMTL
//	document.write (((o_parent.a_config[2]['type'] == 1) ? '' : '<tr>')
	document.write (((o_parent.type == 1) ? '' : '<tr>')
			+ '<td valign="top"><div id="e' + o_root.n_id + '_'
			+ this.n_id +'o" class="' + this.getstyle(0, 0) + '"'
			 + ' style="position: relative;visibility: hidden;'
			+' z-index: ' + zindex + ';" '
			+ ' 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 + ');"><a href="'+ this.a_config[1] +'"' + (this.a_config[2] && this.a_config[2]['tw'] ? ' target="' + this.a_config[2]['tw'] + '"' : '') + 'onclick="return A_MENUS[' + o_root.n_id + '].onclick('+ this.n_id + ');">'
			+ '<div id="e' + o_root.n_id + '_'
			+ this.n_id +'i" style="position: relative;z-index:' + zindex + ';" class="' + this.getstyle(1, 0) + '">'
			+ this.a_config[0] + "</div></a></div></td>"
			+ ((o_parent.a_config[2]['type'] == 1) ? '' : '</tr>')
			+ "\n"
		);
	if ((o_parent.delimiter) && (this.n_order < (this.o_parent.a_config.length - 3 - 1))) {
	    document.write(((o_parent.type == 1) ? '' : '<tr>')
			    + '<td valign="top" class="' + this.getstyle(2, 0) + '">' + o_parent.delimiter + '</td>'
			    + ((o_parent.type == 1) ? '' : '</tr>')
			   );
	}
	
	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.e_kelement = document.getElementById(this.o_parent.k_id);

	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);

}


function menu_item_2(o_parent, n_order) {

    var o_item = o_parent.a_children[n_order];

    if (o_item.a_children) {

        var x = o_item.e_kelement.offsetLeft + o_item.e_oelement.offsetLeft + ((o_item.o_parent.type == 1) ? 0 : o_item.o_parent.size);
//window.alert(o_item.e_oelement.scrollWidth);
//window.alert(o_item.e_kelement.offsetLeft + ' + ' + o_item.e_oelement.offsetLeft + ' : ' + x);
	var y = o_item.e_kelement.offsetTop + o_item.e_oelement.offsetTop + ((o_item.o_parent.type == 1) ? o_item.o_parent.size : 0 );

	// init downline recursively
	document.write('<div id="' + o_item.k_id  + '" style="position:absolute;visibility:hidden;' + ((o_item.type == 1) ? ' height:' : ' width:') + o_item.size + 'px;top:' + y + 'px;left:' + x + 'px;">');
	document.write('<table border="0" width="100%" cellspacing="0" cellpadding="0">');
	
	if (o_item.type == 1) {
	    document.write('<tr>');
	}
		
	for (var n_order = 0; n_order < o_item.a_config.length - 3; n_order++)
		new menu_item(o_item, n_order);

	if (o_item.type == 1) {
	    document.write('</tr>');
	}
	document.write('</table>');
	document.write('</div>');

	// второй прогон для инициализации "детей"
	for (var n_order = 0; n_order < o_item.a_children.length; n_order++) {
	    menu_item_2(o_item, 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];
	
	// check this.a_config[2]
	
	return (this.a_config[2] && this.a_config[2][s_key] ? this.a_config[2][s_key] : (s_value == null ? this.o_parent.getprop(s_key) : s_value));
	
	// 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 ? ((n_pos == 1) ? 'inner' : 'table') : '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

// Нифига не все!

function highlight_dirty_hack(o_item, mode)
{

	if (o_item.n_depth > 0)
	{
	    o_item.o_parent.e_oelement.className = o_item.o_parent.getstyle(0, mode);
	    o_item.o_parent.e_ielement.className = o_item.o_parent.getstyle(1, mode);
	    highlight_dirty_hack(o_item.o_parent, mode);
	}

}