// 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.
// Petar Požar @Blink d.o.o.
// This code was deliberlty changed, to achive DNN compatibility, and relative positioning. 
// Yet TO DO: 
// Make div-naming trough script... in case more menus come on same page

///Return 0 - IE, 1 - FF, 2 - Opera
function GetBrowserType(userAgentString)
{
    if(userAgentString.substring('MSIE',0) >= 0)
        return 0;
    else if(userAgentString.substring('Firefox',0) >= 0)
        return 1;
    else if(userAgentString.substring('Opera',0) >= 0)
        return 2;      
}


// --------------------------------------------------------------------------------
// global collection containing all menus on current page
var A_MENUS = [];

// --------------------------------------------------------------------------------
// slideMenu class
function slideMenu (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 = {
		'block_top'  : 16,
		'block_left' : 16,
		'top'        : 20,
		'left'       : 4,
		'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
	for (n_order = 0; n_order < a_items.length; n_order++)
		new menu_item(this, n_order);

	// 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';
}

// --------------------------------------------------------------------------------
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;
		}
	}

	// reset current item if mouse has gone out of items
	if (!n_id)
		this.o_current = null;
}

// --------------------------------------------------------------------------------
function menu_expand (n_id, cliX, offX, cliY, offY) {

	// 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 xVal, yVal,height, width,scrollLeft,scrollTop;
	// show direct child items
	var height=0;
	for (var n_order = 0; n_order < o_item.a_children.length; n_order++) {
		var o_curritem = o_item.a_children[n_order];
		height = parseInt(o_curritem.e_oelement.style.height);
		if (height == null || height == 0){
			height = parseInt(o_curritem.e_oelement.style.height.substring(0,o_curritem.e_oelement.style.height.length-2));
		}
		height=25;
		width = parseInt(o_curritem.e_oelement.style.width.substring(0,o_curritem.e_oelement.style.width.length-2));
		scrollLeft = parseInt(document.getElementsByTagName("body")[0].scrollLeft);
		scrollTop = parseInt(document.getElementsByTagName("body")[0].scrollTop);
		
		//console.log("cur item " + o_curritem.e_oelement.style.height);
		//console.log(scrollTop + ":" + scrollLeft);
		//console.log(width + ":" + height);
		//console.log(cliX + ":" + cliY);
		
		if(offX != null)
		{
		    xVal = cliX - offX + scrollLeft;
		    yVal = cliY - offY + height * (n_order + 1) ;
		}
		else
		{
		    xVal = cliX 
		    yVal = cliY + height * (n_order + 1) ;
		}
		//console.log("zadnje: " + xVal + ":" + yVal);
		//console.log("height:" + height +"  order: " + n_order);
		
		
		o_curritem.e_oelement.style.clear = "none";
		o_curritem.e_oelement.style.position = "absolute";
		o_curritem.e_oelement.style.top = yVal + "px";		
		o_curritem.e_oelement.style.left =  xVal + "px";
		o_curritem.e_oelement.style.visibility = 'visible';
		o_curritem.b_visible = true;
	}
}

// --------------------------------------------------------------------------------
function menu_onclick (n_id, evt) {
	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, evt) {

	// lookup new item's object	
	var o_item = this.a_index[n_id];

	// apply rollout
	//Petar: I test if this menu is selected, if it is not, ordinary rules does not apply
	if(o_item.e_oelement.className !=  o_item.getstyle(0, 2))
	    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,evt) {
    
	// 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
	if(o_item.e_oelement.className !=  o_item.getstyle(0, 2))
	    o_item.e_oelement.className = o_item.getstyle(0, 1);
	//o_item.e_ielement.className = o_item.getstyle(1, 1);
	
	// if onclick open is set then no more actions required
	if (o_item.getprop('expd_delay') < 0)
		return;

	// run expand timer	
//    alert(evt.clientY + ":" + evt.offsetY + ":" + evt.pageY + + ":" + evt.layerY);
	//alert(evt.clientX + ":" + evt.offsetX+":" + evt.screenX + ":" + evt.x + ":" + evt.X);
//	alert(navigator.userAgent);
    var zero = 0;
	var parent = o_item.e_oelement;
	var coord = findPos(parent);
	
	//console.log(coord);
	
	switch(GetBrowserType(navigator.userAgent))
	{
	    case 0:
	        this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ',' + coord[0] + ',' +
	        zero + ',' + coord[1] + ',' + zero + ');',o_item.getprop('expd_delay'));
		    break;
        case 1:
            this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ',' + coord[0] + ',' +
            zero + ',' + coord[1] + ',' + zero + ');',o_item.getprop('expd_delay'));
		    break;
		case 2:
            this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ',' + coord[0] + ',' +
            zero + ',' + coord[1] + ',' + zero + ');',o_item.getprop('expd_delay'));
            //this.o_showtimer = setTimeout('A_MENUS['+ this.n_id +'].expand(' + n_id + ',' + evt.clientX + ',' +
	        //(evt.offsetX + 20).toString() + ',' + evt.clientY + ',' + (evt.offsetY + 20).toString() + ');',o_item.getprop('expd_delay'));
		    break;
	}
	
}

function findPos(obj) {
	var curleft, curtop;
	curleft = curtop = 0;
	if (obj.offsetParent) {
    		curleft += obj.offsetLeft;
		do {
			curtop += obj.offsetTop;
    			
		} while (obj = obj.offsetParent);
	}
	
	curtop -= 20;
	curleft += 10;
	return [curleft,curtop];
}

// --------------------------------------------------------------------------------
// called when mouse button is pressed on menu item
// --------------------------------------------------------------------------------
function menu_onmousedown (n_id, evt) {
	
	// 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) {

	// 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.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.a_config[2]['sel'] ?  this.getstyle(0, 2) :  this.getstyle(0, 0)),'"',
		(this.a_config[2] && this.a_config[2]['tt'] ? ' title="' + this.a_config[2]['tt'] + '"' : ''),
		//position:absolute;top: ', this.n_y, 'px;left:', this.n_x, 'px; - maknuto za relative pos...
		' style="',
		(this.n_depth > 0  ?  'position:absolute;top:' + this.n_y + ';left:' + this.n_x +';' : 'float: left;'),
		 ';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,',event',
		');"',' onmouseout="A_MENUS[' + o_root.n_id + '].onmouseout(' + this.n_id + ',event' +
		');" onmouseover="A_MENUS['+ o_root.n_id+ '].onmouseover(' + this.n_id + ',event);"><div', (this.n_depth == 0 ? ' style="float: left;"' : ''), '>',
		this.a_config[0], (this.n_depth == 0 && this.a_config.length-3 > 0 ? '</div><img src="/Portals/57/Skins/NOD32/images/subnav_arrow.gif" /></div>' : '</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];
}

// ------------------------------------------------------------------------------------------
// 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