/* =================================================================================================

* Javascript library responsible for the semi-transparent multi-level dropdown menus.

*                                                                                         

* Copyright 2003, Aaron Boodman (aaron@youngpup.net)

* ============================================================================================== */







mtDropDown.spacerGif = "http://static.tele2.ee/t2i-baltic/t.gif"; 

mtDropDown.dingbatOn = "http://static.tele2.ee/t2i-baltic/submenu.gif"; 

mtDropDown.dingbatOff = "http://static.tele2.ee/t2i-baltic/submenu.gif"; 

mtDropDown.dingbatSize = 7; 

mtDropDown.menuPadding = 1; 

mtDropDown.itemPadding = 4; 

mtDropDown.shadowSize = 2; 

mtDropDown.shadowOffset = 3; 

mtDropDown.shadowColor = "#888"; 

mtDropDown.shadowPng = "http://static.tele2.ee/t2i-baltic/grey-40.png"; 

mtDropDown.backgroundColor = "white"; 

mtDropDown.backgroundPng = "http://static.tele2.ee/t2i-baltic/white-90.png"; 

mtDropDown.hideDelay = 1000; 

mtDropDown.slideTime = 200; 



mtDropDown.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};

mtDropDown.direction = {down:1,right:2};

mtDropDown.registry = [];

mtDropDown._maxZ = 100;



mtDropDown.isSupported = function() {

	if (typeof mtDropDown.isSupported.r == "boolean") 

	return mtDropDown.isSupported.r;

	var ua = navigator.userAgent.toLowerCase();

	var an = navigator.appName;

	var r = false;

	if (ua.indexOf("gecko") > -1) r = true; 

	else if ((ua.indexOf("opera") > -1) && (parseFloat(navigator.appVersion) >= 7)) r = true; 

	else if (an == "Microsoft Internet Explorer") {

		if (document.getElementById) r = true; 

	}

	mtDropDown.isSupported.r = r;

	return r;

}



mtDropDown.initialize = function() {

	for (var i = 0, menu = null; menu = this.registry[i]; i++) {

		menu.initialize();

	}

}



mtDropDown.renderAll = function() {

	var aMenuHtml = [];

	for (var i = 0, menu = null; menu = this.registry[i]; i++) {

		aMenuHtml[i] = menu.toString();

	}

	document.write(aMenuHtml.join(""));

}



function mtDropDown(oActuator, iDirection, iLeft, iTop, iReferencePoint, parentMenuSet) {



	this.addItem = addItem;

	this.addMenu = addMenu;

	this.toString = toString;

	this.initialize = initialize;

	this.isOpen = false;

	this.show = show;

	this.hide = hide;

	this.items = [];



	this.onactivate = new Function(); 

	this.ondeactivate = new Function(); 

	this.onmouseover = new Function(); 

	this.onqueue = new Function(); 



	this.index = mtDropDown.registry.length;



	mtDropDown.registry[this.index] = this;

	var id = "mtDropDown" + this.index;

	var contentHeight = null;

	var contentWidth = null;

	var childMenuSet = null;

	var animating = false;

	var childMenus = [];

	var slideAccel = -1;

	var elmCache = null;

	var ready = false;

	var _this = this;

	var a = null;

	var pos = iDirection == mtDropDown.direction.down ? "top" : "left";

	var dim = null;



	function addItem(sText, sUrl) {

		var item = new mtDropDownItem(sText, sUrl, this);

		item._index = this.items.length;

		this.items[item._index] = item;

	}



	function addMenu(oMenuItem) {

		if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");

		if (childMenuSet == null) childMenuSet = new mtDropDownSet(mtDropDown.direction.right, -5, 2, mtDropDown.reference.topRight);

		var m = childMenuSet.addMenu(oMenuItem);

		childMenus[oMenuItem._index] = m;

		m.onmouseover = child_mouseover;

		m.ondeactivate = child_deactivate;

		m.onqueue = child_queue;

		return m;

	}



	function initialize() {

		initCache();

		initEvents();

		initSize();

		ready = true;

	}



	function show() {

		if (ready) {

		_this.isOpen = true;

		animating = true;

		setContainerPos();

		elmCache["clip"].style.visibility = "visible";

		elmCache["clip"].style.zIndex = mtDropDown._maxZ++;



		slideStart();

		_this.onactivate();

	}

}



function hide() {

	if (ready) {

		_this.isOpen = false;

		animating = true;

		for (var i = 0, item = null; item = elmCache.item[i]; i++) 

		dehighlight(item);

		if (childMenuSet) { childMenuSet.hide(); }

		slideStart();

		_this.ondeactivate();

	}

}



function setContainerPos() {

	var sub = oActuator.constructor == mtDropDownItem; 

	var act = sub ? oActuator.parentMenu.elmCache["item"][oActuator._index] : oActuator; 

	var el = act;

	var x = 0;

	var y = 0;

	var minX = 0;

	var maxX = (window.innerWidth ? window.innerWidth : document.body.clientWidth) - parseInt(elmCache["clip"].style.width);

	var minY = 0;

	var maxY = (window.innerHeight ? window.innerHeight : document.body.clientHeight) - parseInt(elmCache["clip"].style.height);



	while (sub ? el.parentNode.className.indexOf("mtDropdownMenu") == -1 : el.offsetParent) {

		x += el.offsetLeft;

		y += el.offsetTop;

		if (el.scrollLeft) x -= el.scrollLeft;

		if (el.scrollTop) y -= el.scrollTop;

			el = el.offsetParent;

		}

		if (oActuator.constructor == mtDropDownItem) {

			x += parseInt(el.parentNode.style.left);

			y += parseInt(el.parentNode.style.top);

		}

		switch (iReferencePoint) {

		case mtDropDown.reference.topLeft:

		break;

		case mtDropDown.reference.topRight:

		x += act.offsetWidth;

		break;

		case mtDropDown.reference.bottomLeft:

		y += act.offsetHeight;

		break;

		case mtDropDown.reference.bottomRight:

		x += act.offsetWidth;

		y += act.offsetHeight;

		break;

	}

	x += iLeft;

	y += iTop;

	x = Math.max(Math.min(x, maxX), minX);

	y = Math.max(Math.min(y, maxY), minY);

	elmCache["clip"].style.left = x + "px";

	elmCache["clip"].style.top = y + "px";

}



function slideStart() {

var x0 = parseInt(elmCache["content"].style[pos]);

var x1 = _this.isOpen ? 0 : -dim;

if (a != null) a.stop();

a = new Accelimation(x0, x1, mtDropDown.slideTime, slideAccel);

a.onframe = slideFrame;

a.onend = slideEnd;

a.start();

}

function slideFrame(x) {

elmCache["content"].style[pos] = x + "px";

}

function slideEnd() {

if (!_this.isOpen) elmCache["clip"].style.visibility = "hidden";

animating = false;

}

function initSize() {



var ow = elmCache["items"].offsetWidth;

var oh = elmCache["items"].offsetHeight;

var ua = navigator.userAgent.toLowerCase();



elmCache["clip"].style.width = ow + mtDropDown.shadowSize + 2 + "px";

elmCache["clip"].style.height = oh + mtDropDown.shadowSize + 2 + "px";



elmCache["content"].style.width = ow + mtDropDown.shadowSize + "px";

elmCache["content"].style.height = oh + mtDropDown.shadowSize + "px";

contentHeight = oh + mtDropDown.shadowSize;

contentWidth = ow + mtDropDown.shadowSize;

dim = iDirection == mtDropDown.direction.down ? contentHeight : contentWidth;



elmCache["content"].style[pos] = -dim - mtDropDown.shadowSize + "px";

elmCache["clip"].style.visibility = "hidden";



if (ua.indexOf("mac") == -1 || ua.indexOf("gecko") > -1) {



elmCache["background"].style.width = ow + "px";

elmCache["background"].style.height = oh + "px";

elmCache["background"].style.backgroundColor = mtDropDown.backgroundColor;



elmCache["shadowRight"].style.left = ow + "px";

elmCache["shadowRight"].style.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize) + "px";

elmCache["shadowRight"].style.backgroundColor = mtDropDown.shadowColor;







elmCache["shadowBottom"].style.top = oh + "px";

elmCache["shadowBottom"].style.width = ow - mtDropDown.shadowOffset + "px";

elmCache["shadowBottom"].style.backgroundColor = mtDropDown.shadowColor;

}



else {



elmCache["background"].firstChild.src = mtDropDown.backgroundPng;

elmCache["background"].firstChild.width = ow;

elmCache["background"].firstChild.height = oh;



elmCache["shadowRight"].firstChild.src = mtDropDown.shadowPng;

elmCache["shadowRight"].style.left = ow + "px";

elmCache["shadowRight"].firstChild.width = mtDropDown.shadowSize;

elmCache["shadowRight"].firstChild.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize);







elmCache["shadowBottom"].firstChild.src = mtDropDown.shadowPng;

elmCache["shadowBottom"].style.top = oh + "px";

elmCache["shadowBottom"].firstChild.height = mtDropDown.shadowSize;

elmCache["shadowBottom"].firstChild.width = ow - mtDropDown.shadowOffset;

}

}



function initCache() {

	var menu = document.getElementById(id);

	var all = menu.all ? menu.all : menu.getElementsByTagName("*"); 



	elmCache = {};

	elmCache["clip"] = menu;

	elmCache["item"] = [];

	for (var i = 0, elm = null; elm = all[i]; i++) {

		switch (elm.className) {

		case "items":

		case "content":

		case "background":

		case "shadowRight":

		case "shadowBottom":

		elmCache[elm.className] = elm;

		break;

		case "item":

		elm._index = elmCache["item"].length;

		elmCache["item"][elm._index] = elm;

		break;

	}

}



_this.elmCache = elmCache;

}

function initEvents() {



for (var i = 0, item = null; item = elmCache.item[i]; i++) {

item.onmouseover = item_mouseover;

item.onmouseout = item_mouseout;

item.onclick = item_click;

}



if (typeof oActuator.tagName != "undefined") {

oActuator.onmouseover = actuator_mouseover;

oActuator.onmouseout = actuator_mouseout;

}



elmCache["content"].onmouseover = content_mouseover;

elmCache["content"].onmouseout = content_mouseout;

}

function highlight(oRow) {

oRow.className = "itemHover";

if (childMenus[oRow._index]) 

oRow.lastChild.firstChild.src = mtDropDown.dingbatOn;

}

function dehighlight(oRow) {

oRow.className = "item";

if (childMenus[oRow._index]) 

oRow.lastChild.firstChild.src = mtDropDown.dingbatOff;

}

function item_mouseover() {

if (!animating) {

highlight(this);

if (childMenus[this._index]) 

childMenuSet.showMenu(childMenus[this._index]);

else if (childMenuSet) childMenuSet.hide();

}

}

function item_mouseout() {

if (!animating) {

if (childMenus[this._index]) {

childMenuSet.hideMenu(childMenus[this._index]);

}

else 

dehighlight(this);

}

}

function item_click() {

	if (!animating) {

		if (_this.items[this._index].url) 

		location.href = _this.items[this._index].url;

	}

}

function actuator_mouseover() {

	parentMenuSet.showMenu(_this);

}

function actuator_mouseout() {

	parentMenuSet.hideMenu(_this);

}

function content_mouseover() {

	if (!animating) {

	parentMenuSet.showMenu(_this);

	_this.onmouseover();

	}

}

function content_mouseout() {

	if (!animating) {

		parentMenuSet.hideMenu(_this);

	}

}



function child_mouseover() {

	if (!animating) {

		parentMenuSet.showMenu(_this);

		_this.onmouseover();

	}

}



function child_deactivate() {

	for (var i = 0; i < childMenus.length; i++) {

		if (childMenus[i] == this) {

			dehighlight(elmCache["item"][i]);

		break;

		}

	}

}



function child_queue() {

	parentMenuSet.hideMenu(_this);

}



function toString() {

var aHtml = [];

var sClassName = "mtDropdownMenu" + (oActuator.constructor != mtDropDownItem ? " top" : "");

for (var i = 0, item = null; item = this.items[i]; i++) {

aHtml[i] = item.toString(childMenus[i]);

}

return '<div id="' + id + '" class="' + sClassName + '">' + 

'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">' + 

'<tr><td colspan="2"><img src="' + mtDropDown.spacerGif + '" width="1" height="' + mtDropDown.menuPadding + '" alt="" /></td></tr>' + 

aHtml.join('') + 

'<tr><td colspan="2"><img src="' + mtDropDown.spacerGif + '" width="1" height="' + mtDropDown.menuPadding + '" alt="" /></td></tr></table>' + 

'<div class="shadowBottom"><img src="' + mtDropDown.spacerGif + '" width="1" height="1" alt="" /></div>' + 

'<div class="shadowRight"><img src="' + mtDropDown.spacerGif + '" width="1" height="1" alt="" /></div>' + 

'<div class="background"><img src="' + mtDropDown.spacerGif + '" width="1" height="1" alt="" /></div>' + 

'</div></div>';

}

}



mtDropDownSet.registry = [];

function mtDropDownSet(iDirection, iLeft, iTop, iReferencePoint) {



this.addMenu = addMenu;

this.showMenu = showMenu;

this.hideMenu = hideMenu;

this.hide = hide;



var menus = [];

var _this = this;

var current = null;

this.index = mtDropDownSet.registry.length;

mtDropDownSet.registry[this.index] = this;



function addMenu(oActuator) {

var m = new mtDropDown(oActuator, iDirection, iLeft, iTop, iReferencePoint, this);

menus[menus.length] = m;

return m;

}

function showMenu(oMenu) {

if (oMenu != current) {



if (current != null) hide(current);



current = oMenu;



oMenu.show();

}

else {

cancelHide(oMenu);

}

}

function hideMenu(oMenu) {

if (current == oMenu && oMenu.isOpen) {

if (!oMenu.hideTimer) scheduleHide(oMenu);

}

}



function scheduleHide(oMenu) {



oMenu.onqueue();

oMenu.hideTimer = window.setTimeout("mtDropDownSet.registry[" + _this.index + "].hide(mtDropDown.registry[" + oMenu.index + "])", mtDropDown.hideDelay);

}

function cancelHide(oMenu) {

if (oMenu.hideTimer) {

window.clearTimeout(oMenu.hideTimer);

oMenu.hideTimer = null;

}

}

function hide(oMenu) { 

if (!oMenu && current) { oMenu = current; }

if (oMenu && current == oMenu && oMenu.isOpen) {



cancelHide(oMenu);

current = null;

oMenu.hideTimer = null;

oMenu.hide();

}

}

}





function mtDropDownItem(sText, sUrl, oParent) {

this.toString = toString;

this.text = sText;

this.url = sUrl;

this.parentMenu = oParent;

function toString(bDingbat) {

var sDingbat = bDingbat ? mtDropDown.dingbatOff : mtDropDown.spacerGif;

var iEdgePadding = mtDropDown.itemPadding + mtDropDown.menuPadding;

var sPaddingLeft = "padding:" + mtDropDown.itemPadding + "px; padding-left:" + iEdgePadding + "px;"

var sPaddingRight = "padding:" + mtDropDown.itemPadding + "px; padding-right:" + iEdgePadding + "px;"

return '<tr class="item"><td nowrap style="' + sPaddingLeft + '">' + 

sText + '</td><td width="7" style="' + sPaddingRight + '">' + 

'<img src="' + sDingbat + '" width="7" height="7" alt="" /></td></tr>';

}

}







function Accelimation(from, to, time, zip) {

if (typeof zip == "undefined") zip = 0;

if (typeof unit == "undefined") unit = "px";

this.x0 = from;

this.x1 = to;

this.dt = time;

this.zip = -zip;

this.unit = unit;

this.timer = null;

this.onend = new Function();

this.onframe = new Function();

}









Accelimation.prototype.start = function() {

this.t0 = new Date().getTime();

this.t1 = this.t0 + this.dt;

var dx = this.x1 - this.x0;

this.c1 = this.x0 + ((1 + this.zip) * dx / 3);

this.c2 = this.x0 + ((2 + this.zip) * dx / 3);

Accelimation._add(this);

}



Accelimation.prototype.stop = function() {

Accelimation._remove(this);

}









Accelimation.prototype._paint = function(time) {

if (time < this.t1) {

var elapsed = time - this.t0;

this.onframe(Accelimation._getBezier(elapsed/this.dt,this.x0,this.x1,this.c1,this.c2));

}

else this._end();

}



Accelimation.prototype._end = function() {

Accelimation._remove(this);

this.onframe(this.x1);

this.onend();

}









Accelimation._add = function(o) {

var index = this.instances.length;

this.instances[index] = o;



if (this.instances.length == 1) {

this.timerID = window.setInterval("Accelimation._paintAll()", this.targetRes);

}

}



Accelimation._remove = function(o) {

for (var i = 0; i < this.instances.length; i++) {

if (o == this.instances[i]) {

this.instances = this.instances.slice(0,i).concat( this.instances.slice(i+1) );

break;

}

}



if (this.instances.length == 0) {

window.clearInterval(this.timerID);

this.timerID = null;

}

}



Accelimation._paintAll = function() {

var now = new Date().getTime();

for (var i = 0; i < this.instances.length; i++) {

this.instances[i]._paint(now);

}

}



Accelimation._B1 = function(t) { return t*t*t }

Accelimation._B2 = function(t) { return 3*t*t*(1-t) }

Accelimation._B3 = function(t) { return 3*t*(1-t)*(1-t) }

Accelimation._B4 = function(t) { return (1-t)*(1-t)*(1-t) }



Accelimation._getBezier = function(percent,startPos,endPos,control1,control2) {

return endPos * this._B1(percent) + control2 * this._B2(percent) + control1 * this._B3(percent) + startPos * this._B4(percent);

}







Accelimation.instances = [];

Accelimation.targetRes = 10;

Accelimation.timerID = null;