/* 
TransMenu, March, 2003,Copyright 2003-2004, Aaron Boodman (www.youngpup.net)
Modifications by Bitcore Data Solutions - www.Bitcore.org  (popups, PDF graphics, slideout directions, safari tweaks) */

function actuator_pause(){
	if (_this.mouseIsOver == true){
		parentMenuSet.showMenu(_this);
	}
}


TransMenu.spacerGif = "http://www.lenoircc.edu/newwebsite/lccwebsite07/media/spacer.gif";
TransMenu.dingbatRight = "http://www.lenoircc.edu/newwebsite/lccwebsite07/media/arrow.gif";
TransMenu.dingbatLeft = "http://www.lenoircc.edu/newwebsite/lccwebsite07/media/arrow_Lft.gif";
TransMenu.PDFGraphic  = "http://www.lenoircc.edu/newwebsite/lccwebsite07/media/menu_pdf.gif";
TransMenu.dingbatSize = 14;
TransMenu.menuPadding = 5;
TransMenu.itemPadding = 3;
TransMenu.backgroundColor = "white";
TransMenu.backgroundPng = "media/spacer.gif";
TransMenu.hideDelay = 900;
TransMenu.slideTime = 250;
TransMenu.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};
TransMenu.direction = {down:1,right:2,left:3};
TransMenu.registry = [];
TransMenu._maxZ = 1000;

TransMenu.isSupported = function() {
        var ua = navigator.userAgent.toLowerCase();
		var pf = navigator.platform.toLowerCase();
        var an = navigator.appName;
        var r = false;

        if (ua.indexOf("gecko") > -1 && navigator.productSub >= 20020605) r = true; // gecko >= moz 1.0
        else if (an == "Microsoft Internet Explorer") {
                if (document.getElementById) { // ie5.1+ mac,win
                        if (pf.indexOf("mac") == 0) {
							r = /msie (\d(.\d*)?)/.test(ua) && Number(RegExp.$1) >= 5.1;
						}
						else r = true;
                }
        }

        return r;
}

TransMenu.initialize = function() {
for (var i = 0, menu = null; menu = this.registry[i]; i++) {
menu.initialize();
}
}
TransMenu.renderAll = function() {
var aMenuHtml = [];
for (var i = 0, menu = null; menu = this.registry[i]; i++) {
aMenuHtml[i] = menu.toString();
}
document.write(aMenuHtml.join(""));
}
TransMenu.shadowSize = 0;
TransMenu.shadowOffset = 3;
TransMenu.shadowColor = "#888";
TransMenu.shadowPng = "";
function TransMenu(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.ondequeue = new Function();
this.index = TransMenu.registry.length;
TransMenu.registry[this.index] = this;
var id = "TransMenu" + 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 = "";
if (iDirection == TransMenu.direction.down) {
	pos = "top";
} else if (iDirection == TransMenu.direction.left) {
	pos = "right";
} else {
	pos = "left";
}
var dim = null;
function addItem(sText, sUrl, alignment, pdf, popup) {
var item = new TransMenuItem(sText, sUrl, this, alignment, pdf, popup);
item._index = this.items.length;
this.items[item._index] = item;
}
function addMenu(oMenuItem,vdirection) {
if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");
if (childMenuSet == null){
	if (vdirection==1) {
		childMenuSet = new TransMenuSet(TransMenu.direction.left, 5, 2, TransMenu.reference.topLeft);
	} else {
		childMenuSet = new TransMenuSet(TransMenu.direction.right, -4, 2, TransMenu.reference.topRight);
	}
}

var m = childMenuSet.addMenu(oMenuItem,0);
childMenus[oMenuItem._index] = m;
m.onmouseover = child_mouseover;
m.ondeactivate = child_deactivate;
m.onqueue = child_queue;
m.ondequeue = child_dequeue;
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 = TransMenu._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 == TransMenuItem; 
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("transMenu") == -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 == TransMenuItem) {
x += parseInt(el.parentNode.style.left);
y += parseInt(el.parentNode.style.top);
}
switch (iReferencePoint) {
case TransMenu.reference.topLeft: {
	x -= elmCache["items"].offsetWidth +2;
}
break;
case TransMenu.reference.topRight:
x += act.offsetWidth;
break;
case TransMenu.reference.bottomLeft:
y += act.offsetHeight;
break;
case TransMenu.reference.bottomRight:
x += act.offsetWidth;
y += act.offsetHeight;
break;
}
//  SAFARI
if (act.tagName == "TR" && act.childNodes[0] && act.childNodes[1] && act.offsetWidth == 0 && act.offsetHeight == 0) {
    switch (iReferencePoint) {
        case TransMenu.reference.topLeft:
                break;
        case TransMenu.reference.topRight:
                x += act.childNodes[1].offsetLeft + act.childNodes[1].offsetWidth;
                y += act.childNodes[0].offsetTop;
                break;
        case TransMenu.reference.bottomLeft:
                y += act.childNodes[0].offsetTop + act.childNodes[0].offsetHeight;
                break;
        case TransMenu.reference.bottomRight:
            x += act.childNodes[1].offsetLeft + act.childNodes[1].offsetWidth;
            y += act.childNodes[0].offsetTop + act.childNodes[0].offsetHeight;
            break;

    }
}
//  END SAFARI

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, TransMenu.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 + TransMenu.shadowSize + 2 + "px";
elmCache["clip"].style.height = oh + TransMenu.shadowSize + 2 + "px";
elmCache["content"].style.width = ow + TransMenu.shadowSize + "px";
elmCache["content"].style.height = oh + TransMenu.shadowSize + "px";
contentHeight = oh + TransMenu.shadowSize;
contentWidth = ow + TransMenu.shadowSize;
dim = iDirection == TransMenu.direction.down ? contentHeight : contentWidth;

elmCache["content"].style[pos] = -dim - TransMenu.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 = TransMenu.backgroundColor;
} else {
elmCache["background"].firstChild.src = TransMenu.backgroundPng;
elmCache["background"].firstChild.width = ow;
elmCache["background"].firstChild.height = oh;
}
}
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 "null":
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 = "item hover";
//if (childMenus[oRow._index])
//oRow.lastChild.firstChild.src = TransMenu.dingbatOn;
}
function dehighlight(oRow) {
oRow.className = "item";
//if (childMenus[oRow._index])
//oRow.lastChild.firstChild.src = TransMenu.dingbatOff;
}
function item_mouseover() {
highlight(this);
if (childMenus[this._index]) 
childMenuSet.showMenu(childMenus[this._index]);
else if (childMenuSet) childMenuSet.hide();
}
function item_mouseout() {
if (childMenus[this._index])
childMenuSet.hideMenu(childMenus[this._index]);
else
dehighlight(this);
}
function item_click() {
if (!animating) {
if (_this.items[this._index].url)
	if (_this.items[this._index].pop==1) {
		window.open(_this.items[this._index].url, 'new_window', 'width=600,height=400,resizable');
	} else if (_this.items[this._index].pop==2) {
		window.open(_this.items[this._index].url, 'new_window');
	} else {
		location.href = _this.items[this._index].url;
	}
}
}
function actuator_mouseover() {
	_this.mouseIsOver = true;
	window.setTimeout(actuator_pause,400);
}


function actuator_pause(){
	if (_this.mouseIsOver == true){
		parentMenuSet.showMenu(_this);
	}
}
 
function actuator_mouseout() {
	_this.mouseIsOver = false;
	parentMenuSet.hideMenu(_this);
}

function content_mouseover() {
parentMenuSet.showMenu(_this);
_this.onmouseover();
}
function content_mouseout() {
parentMenuSet.hideMenu(_this);
}
function child_mouseover() {
parentMenuSet.showMenu(_this);
}
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 child_dequeue() {
parentMenuSet.showMenu(_this);
}

function toString() {
var aHtml = [];
var sClassName = "transMenu" + (oActuator.constructor != TransMenuItem ? " 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"></td></tr>' + 
aHtml.join('') + 
'<tr><td colspan="2"></td></tr></table>' + 
'<div class="background"><img src="' + TransMenu.spacerGif + '" width="1" height="1" border="0"></div>' + 
'</div></div>';
}
}
TransMenuSet.registry = [];
function TransMenuSet(iDirection, iLeft, iTop, iReferencePoint) {
this.addMenu = addMenu;
this.showMenu = showMenu;
this.hideMenu = hideMenu;
this.hide = hide;
this.hideCurrent = hideCurrent;
var ua = navigator.userAgent.toLowerCase(); 
if (ua.indexOf('safari') != - 1 && iLeft==1) {
	iLeft=9;
}
var menus = [];
var _this = this;
var current = null;
this.index = TransMenuSet.registry.length;
TransMenuSet.registry[this.index] = this;
function addMenu(oActuator,vdirection) {
var m = new TransMenu(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("TransMenuSet.registry[" + _this.index + "].hide(TransMenu.registry[" + oMenu.index + "])", TransMenu.hideDelay);
}
function cancelHide(oMenu) {
if (oMenu.hideTimer) {
oMenu.ondequeue();
window.clearTimeout(oMenu.hideTimer);
oMenu.hideTimer = null;
}
}
function hide(oMenu) { 
if (!oMenu && current) oMenu = current;
if (oMenu && current == oMenu && oMenu.isOpen) {
hideCurrent();
}
}
function hideCurrent() {

if (null != current) {
cancelHide(current);
current.hideTimer = null;
current.hide();
current = null;
}
}
}
function str_replace(str,stra,strb) { while(str.indexOf(stra)!=-1) { str=str.replace(stra,strb); }return str; }
function TransMenuItem(sText, sUrl, oParent, alignment, pdf, popup) {
this.toString = toString;
this.text = sText;
this.url = sUrl;
this.pop = popup;
this.parentMenu = oParent;
this.alignment=alignment;
this.pdf=pdf;
	function toString(bDingbat) {
		var sAltText="";
		var sDingbat;
		var sPaddingLeft = "padding:" + TransMenu.itemPadding + "px; padding-left: 5px;"
		var sPaddingRight = "padding:" + TransMenu.itemPadding + "px; padding-right: 8px;"
		if (alignment==1){
			if (sDingbat = bDingbat) {
				sDingbat = TransMenu.dingbatLeft;
			} else {
				 if (pdf==1) {
					sDingbat = TransMenu.PDFGraphic;
					sAltText = "PDF Document";
				} else {
					sDingbat = TransMenu.spacerGif;
				}
			}
			return '<tr class="item"><td nowrap style="' + sPaddingRight + '">' +
			'<img src="' + sDingbat + '" width="14" height="14" align="left" alt="'+sAltText+'"></td><td align="right" style="'+sPaddingRight+' color: #FFFFFF;">' + 
			str_replace(sText," ","&nbsp;") + '</td></td></tr>';
		} else {
			if (sDingbat = bDingbat) {
				sDingbat = TransMenu.dingbatRight;
			} else {
				 if (pdf==1) {
					sDingbat = TransMenu.PDFGraphic;
					sAltText = "PDF Document";
				} else {
					sDingbat = TransMenu.spacerGif;
				}
			}
			return '<tr class="item"><td nowrap style="' + sPaddingLeft + ' color: #FFFFFF;" >' + 
			str_replace(sText," ","&nbsp;") + '</td><td width="14" style="' + sPaddingLeft + '">' + 
			'<img src="' + sDingbat + '" width="14" height="14" alt="'+sAltText+'"></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 is the first one, start the engine
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;
//=====================================================================
// IE win memory cleanup
//=====================================================================

if (window.attachEvent) {
    var cearElementProps = [
        'data',
        'onmouseover',
        'onmouseout',
        'onmousedown',
        'onmouseup',
        'ondblclick',
        'onclick',
        'onselectstart',
        'oncontextmenu'
    ];

    window.attachEvent("onunload", function() {
        var el;
        for(var d = document.all.length;d--;){
            el = document.all[d];
            for(var c = cearElementProps.length;c--;){
                el[cearElementProps[c]] = null;
            }
        }
    });
}