// Title: Tigra Menu
// Description: Free JavaScript Menu Navigation
// URL: http://www.javascript-menu.com/
// Version: 2.1 (commented source)
// Date: 06/26/2007
// Tech. Support: http://www.softcomplex.com/forum/forumdisplay_29/
// 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 = [];
	this.expandedItems = [];
	
	// assigh methods and event handlers
	this.expand			 = menu_expand;
	this.collapse		= menu_collapse;
	
	//this.expandCurrent	= menu_expandCurrent; /* This was added */

	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'        : 25,
		'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;

	// 	init items recursively
	document.write("<div id='mainMenuDiv' style='position:relative;width:166px;'>")
	for (n_order = 0; n_order < a_items.length; n_order++)
		new menu_item(this, n_order);
	document.write("</div>")
	
	// 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';
		
	this.setCurrent = function()
	{
		
		clearTimeout(this.o_hidetimer);
		this.o_hidetimer = null;
		clearTimeout(this.o_showtimer);
		
		for(var i=0; i < this.expandedItems.length; i++){
			var id = this.expandedItems[i].n_id
			// lookup new item's object	
			var o_item = this.a_index[id];
			// apply rollover
			o_item.e_oelement.className = o_item.getSelectedStyle(0, 1, 1);
			o_item.e_ielement.className = o_item.getSelectedStyle(1, 1, 1);
			//If not a leaf in the nav Tree
			
//			if(i >= 0 ){
//				this.expand(id)
//				
//				}
		}
	}
	
	//Expand The Current Page (Added):
	for (var n_order = 0; n_order < this.a_children.length; n_order++){
		expandCurrent(this.a_children[n_order]);
//
			}
	this.setCurrent()
	
}
// --------------------------------------------------------------------------------
//Returns true if one of descendants is the current page.
function expandCurrent(obj){
	if(obj.o_root.a_index[obj.n_id].a_config[1] == (window.location.pathname + window.location.search)){
		obj.o_root.expandedItems.push(obj);
		return true;
	}
	
	var childNodeCount = obj.a_children==null?0:obj.a_children.length;
	
	for (var n_order = 0; n_order < childNodeCount; n_order++)
		if(expandCurrent(obj.a_children[n_order])){
			obj.o_root.expandedItems.push(obj);
			return true;
		}
	return false;
}
// --------------------------------------------------------------------------------
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.e_oelement.style.display = 'none';
			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.e_oelement.style.display = '';
		//o_curritem.e_oelement.style.top = (parseInt(o_curritem.e_oelement.previousSibling.style.top) + 25 ).toString();
		
		o_curritem.b_visible = true;
	}
}

// --------------------------------------------------------------------------------
function menu_onclick (n_id) {
	var o_item = this.a_index[n_id];
	var s_link = o_item.a_config[1];
	if (!s_link)
		return true;
	if (String(s_link).toLowerCase().indexOf('javascript:') == 0)
		return eval(s_link);
	if (o_item.a_config[2] && o_item.a_config[2]['tw'])
		window.open(s_link, o_item.a_config[2]['tw']);
	else
		window.location = s_link;
	return true;
}

// --------------------------------------------------------------------------------
function menu_onmouseout (n_id) {
    // check for the selected item
      
	// lookup new item's object	
	var o_item = this.a_index[n_id];
  var expandedIndex = this.expandedItems.length - 1 - o_item.n_depth;
		var expandedObj = this.expandedItems[expandedIndex];
	// apply rollout
	if (o_item!=expandedObj){
	    o_item.e_oelement.className = o_item.getstyle(0, 0);
	    o_item.e_ielement.className = o_item.getstyle(1, 0);
	   
	}
	    if(o_item.n_depth > 0 && o_item.o_parent != null && o_item.o_parent.e_oelement != null){
		   // o_item.o_parent.e_oelement.className = o_item.o_parent.getstyle(0, 0);
		   // o_item.o_parent.e_ielement.className = o_item.o_parent.getstyle(1, 0);
	    }
	
	
	// update status line	
	o_item.upstatus(7);

	// run mouseover timer
	
	
	this.o_hidetimer = setTimeout('A_MENUS['+ this.n_id +'].collapse();A_MENUS['+ this.n_id +'].setCurrent();for (var n_order = 0; n_order < A_MENUS['+ this.n_id +'].a_children.length; n_order++){expandCurrent(A_MENUS['+ this.n_id +'].a_children[n_order])};', 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
		//(first apply rollout for the permanently-selected-item in this depth (if there is such one))
		var expandedIndex = this.expandedItems.length - 1 - o_item.n_depth;
		var expandedObj = this.expandedItems[expandedIndex];
		
		   
		 
		/*if(expandedObj != null){
			expandedObj.e_oelement.className = expandedObj.getstyle(0, 0);
			expandedObj.e_ielement.className = expandedObj.getstyle(1, 0);
		}*/
		
		//NOW, apply the roll over, after all items in this depth have been 'rolled out'
		 if(expandedObj != o_item){
		    o_item.e_oelement.className = o_item.getstyle(0, 1);
		    o_item.e_ielement.className = o_item.getstyle(1, 1);
		}
		//ALSO, apply roll over to parent:
		
		if(o_item.n_depth > 0 && o_item.o_parent != null && o_item.o_parent.e_oelement != null){
//			o_item.o_parent.e_oelement.className = o_item.o_parent.getstyle(0, 1,1);
//			o_item.o_parent.e_ielement.className = o_item.o_parent.getstyle(1, 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, 1);
	o_item.e_ielement.className = o_item.getstyle(1, 1);

	this.expand(n_id);
}

// --------------------------------------------------------------------------------
// menu item Class
function menu_item (o_parent, n_order) {
	//For debug:
	this.toString = function (){return "menu_item"}

	// 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.getSelectedStyle	= mitem_getSelectedStyle; //added
	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');


	// generate item's HMTL
	
	document.write (
		'<div id="e', o_root.n_id, '_',	this.n_id, 'o" class="', this.getstyle(0, 0), '"', 
		(this.a_config[2] && this.a_config[2]['tt'] ? ' title="' + this.a_config[2]['tt'] + '"' : ''),
		' 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, ';cursor:', (this.a_config[1] ? 'pointer' : 'default'), '" ',
		'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></div>"
	);

	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][0];
}
function mitem_getSelectedStyle(n_pos, n_state, selected){
	var a_css = this.getprop('css');
	var a_oclass = a_css[n_pos ? 'inner' : 'outer'];
	return a_oclass[n_state][selected];
}
// ------------------------------------------------------------------------------------------
// 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