var el = new Object();
var info = new Object();
var logosNum = 0;
var curRotationNum = 0;
var infoUp;
var moveInfoIn;
var moveInfoOut;
var infoDown;
var moveforward;

startScrollingLogos = function() {
	
	el = document.getElementById("logos");
	el.style.left = "55px";

	moveforward = true;
	
	info = document.getElementById("infoArea");
	info.style.top = "15px";
	infoUp = false;
	infoDown = false;
	
	for (t=0; t<el.childNodes.length; t++) {
		if (el.childNodes[t].className == 'logoimg') {
			logosNum++;
		}
	}
	
	var interval = setInterval(scrollEl, 5000);

}

scrollEl = function() {

	var curLeftPos = parseInt(el.style.left);
	if (moveforward) {
		curRotationNum++;
		var newPos = curLeftPos-(55*3);
	} else {
		curRotationNum--;
		var newPos = curLeftPos+(55*3);
	}
	if (curRotationNum > (logosNum-1) && moveforward) {
		
		var newPos = curLeftPos+(55*3);
		moveforward = false;
	} 
	if (curRotationNum == 1 && !moveforward) {
		
		var newPos = curLeftPos-(55*3);
		moveforward = true;
		
	}
	var moveLogos = new Tween(el.style,'left',Tween.strongEaseOut,curLeftPos,newPos,0.8,'px');
	moveLogos.start();

}

showInfo = function(heading, maintext) {
	
	if (!infoUp) {
	
		infoUp = true;
		infoheader = document.getElementById("infoTextHeading");
		infomain = document.getElementById("infoTextMain");
		
		var curHeadText = infoheader.innerHTML;
		var curMainText = infomain.innerHTML;
			
		infoheader.innerHTML = heading;
		infomain.innerHTML = maintext;
		
		if (infoDown) {
			moveInfoOut.stop();
			infoDown = false;
		}
	
		var curTopVal = parseInt(info.style.top);
		moveInfoIn = new Tween(info.style,'top',Tween.strongEaseOut,curTopVal,-65,0.8,'px');
		moveInfoIn.start();
	
	}

}

hideInfo = function() {
	
	var curTopVal = parseInt(info.style.top);
	
	if (infoUp) {
		moveInfoIn.stop();
	}
	
	moveInfoOut = new Tween(info.style,'top',Tween.strongEaseOut,curTopVal,15,0.5,'px');
	moveInfoOut.start();
	infoUp = false;
	infoDown = true;

}

// TWEENING:

function Delegate() {}
Delegate.create = function (o, f) {
	var a = new Array() ;
	var l = arguments.length ;
	for(var i = 2 ; i < l ; i++) a[i - 2] = arguments[i] ;
	return function() {
		var aP = [].concat(arguments, a) ;
		f.apply(o, aP);
	}
}

Tween = function(obj, prop, func, begin, finish, duration, suffixe){
	this.init(obj, prop, func, begin, finish, duration, suffixe)
}
var t = Tween.prototype;

t.obj = new Object();
t.prop='';
t.func = function (t, b, c, d) { return c*t/d + b; };
t.begin = 0;
t.change = 0;
t.prevTime = 0;
t.prevPos = 0;
t.looping = false;
t._duration = 0;
t._time = 0;
t._pos = 0;
t._position = 0;
t._startTime = 0;
t._finish = 0;
t.name = '';
t.suffixe = '';
t._listeners = new Array();	
t.setTime = function(t){
	this.prevTime = this._time;
	if (t > this.getDuration()) {
		if (this.looping) {
			this.rewind (t - this._duration);
			this.update();
			this.broadcastMessage('onMotionLooped',{target:this,type:'onMotionLooped'});
		} else {
			this._time = this._duration;
			this.update();
			this.stop();
			this.broadcastMessage('onMotionFinished',{target:this,type:'onMotionFinished'});
		}
	} else if (t < 0) {
		this.rewind();
		this.update();
	} else {
		this._time = t;
		this.update();
	}
}
t.getTime = function(){
	return this._time;
}
t.setDuration = function(d){
	this._duration = (d == null || d <= 0) ? 100000 : d;
}
t.getDuration = function(){
	return this._duration;
}
t.setPosition = function(p){
	this.prevPos = this._pos;
	var a = this.suffixe != '' ? this.suffixe : '';
	this.obj[this.prop] = Math.round(p) + a;
	this._pos = p;
	this.broadcastMessage('onMotionChanged',{target:this,type:'onMotionChanged'});
}
t.getPosition = function(t){
	if (t == undefined) t = this._time;
	return this.func(t, this.begin, this.change, this._duration);
};
t.setFinish = function(f){
	this.change = f - this.begin;
};
t.geFinish = function(){
	return this.begin + this.change;
};
t.init = function(obj, prop, func, begin, finish, duration, suffixe){
	if (!arguments.length) return;
	this._listeners = new Array();
	this.addListener(this);
	if(suffixe) this.suffixe = suffixe;
	this.obj = obj;
	this.prop = prop;
	this.begin = begin;
	this._pos = begin;
	this.setDuration(duration);
	if (func!=null && func!='') {
		this.func = func;
	}
	this.setFinish(finish);
}
t.start = function(){
	this.rewind();
	this.startEnterFrame();
	this.broadcastMessage('onMotionStarted',{target:this,type:'onMotionStarted'});
	//alert('in');
}
t.rewind = function(t){
	this.stop();
	this._time = (t == undefined) ? 0 : t;
	this.fixTime();
	this.update();
}
t.fforward = function(){
	this._time = this._duration;
	this.fixTime();
	this.update();
}
t.update = function(){
	this.setPosition(this.getPosition(this._time));
	}
t.startEnterFrame = function(){
	this.stopEnterFrame();
	this.isPlaying = true;
	this.onEnterFrame();
}
t.onEnterFrame = function(){
	if(this.isPlaying) {
		this.nextFrame();
		setTimeout(Delegate.create(this, this.onEnterFrame), 0);
	}
}
t.nextFrame = function(){
	this.setTime((this.getTimer() - this._startTime) / 1000);
	}
t.stop = function(){
	this.stopEnterFrame();
	this.broadcastMessage('onMotionStopped',{target:this,type:'onMotionStopped'});
}
t.stopEnterFrame = function(){
	this.isPlaying = false;
}

t.continueTo = function(finish, duration){
	this.begin = this._pos;
	this.setFinish(finish);
	if (this._duration != undefined)
		this.setDuration(duration);
	this.start();
}
t.resume = function(){
	this.fixTime();
	this.startEnterFrame();
	this.broadcastMessage('onMotionResumed',{target:this,type:'onMotionResumed'});
}
t.yoyo = function (){
	this.continueTo(this.begin,this._time);
}

t.addListener = function(o){
	this.removeListener (o);
	return this._listeners.push(o);
}
t.removeListener = function(o){
	var a = this._listeners;	
	var i = a.length;
	while (i--) {
		if (a[i] == o) {
			a.splice (i, 1);
			return true;
		}
	}
	return false;
}
t.broadcastMessage = function(){
	var arr = new Array();
	for(var i = 0; i < arguments.length; i++){
		arr.push(arguments[i])
	}
	var e = arr.shift();
	var a = this._listeners;
	var l = a.length;
	for (var i=0; i<l; i++){
		if(a[i][e])
		a[i][e].apply(a[i], arr);
	}
}
t.fixTime = function(){
	this._startTime = this.getTimer() - this._time * 1000;
}
t.getTimer = function(){
	return new Date().getTime() - this._time;
}
Tween.backEaseIn = function(t,b,c,d,a,p){
	if (s == undefined) var s = 1.70158;
	return c*(t/=d)*t*((s+1)*t - s) + b;
}
Tween.backEaseOut = function(t,b,c,d,a,p){
	if (s == undefined) var s = 1.70158;
	return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
}
Tween.backEaseInOut = function(t,b,c,d,a,p){
	if (s == undefined) var s = 1.70158; 
	if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
	return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
}

Tween.strongEaseInOut = function(t,b,c,d){
	return c*(t/=d)*t*t*t*t + b;
	}
Tween.strongEaseIn = function(t,b,c,d){
	return c*(t/=d)*t*t*t*t + b;
	}
Tween.strongEaseOut = function(t,b,c,d){
	return c*((t=t/d-1)*t*t*t*t + 1) + b;
	}

Tween.strongEaseInOut = function(t,b,c,d){
	if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
	return c/2*((t-=2)*t*t*t*t + 2) + b;
	}