PopupAnimation.prototype.calculateNewMove = function() {
	if (this.moves.length > 0) {
		var thisMove = this.moves[this.moves.length - 1];	// calculating last pushed move
		var frameInterval = (thisMove.frameInterval) ? thisMove.frameInterval : this.defaultFrameInterval;
		if (this.movePoints.length > 0) {
			// linear move -- todo radial move
			// start from last movePoint, end at move's endpoint
			var startPoint = this.movePoints[this.movePoints.length - 1];
			startPoint.frameInterval = frameInterval;
			var deltaX = (thisMove.x - startPoint.x) / thisMove.framesToReach;
			var deltaY = (thisMove.y - startPoint.y) / thisMove.framesToReach;
			for (var i = 0; i < thisMove.framesToReach; i++) {
				var lastPoint = this.movePoints[this.movePoints.length - 1];
				var nextX = Math.round(lastPoint.x + deltaX);
				var nextY = Math.round(lastPoint.y + deltaY);
				this.pushPoint(nextX, nextY, frameInterval);
			}
		}
		else {	// have move, don't have movepoints -- push point only
			this.x = thisMove.x;
			this.y = thisMove.y;
			this.pushPoint(thisMove.x, thisMove.y);
		}
	}
}

PopupAnimation.prototype.animate = function() {
	this.animationIndex++;
	var thisPoint = this.movePoints[this.animationIndex];
	var frameInterval = this.defaultFrameInterval;
	if (thisPoint) {				// point exists, position
		this.x = thisPoint.x;
		this.y = thisPoint.y;
		this.positionPopup();
		frameInterval = thisPoint.frameInterval;
	}
	if (this.animationIndex == 0) {		// first call, show
		if (this.cancelOnClickEnabled && !this.listenerAttached) {	// attach mouse listener if cancelOnClick is set
			this.attachListener();
			this.listenerAttached = true;
		}
		this.showPopup();
	}
	if (this.animationIndex == this.movePoints.length) {	// last call, reset
		if (this.autoHideEnabled) { this.hidePopup(); }	// hide when autoHide is set
		this.animationIndex = -1;
	}
	else {
		var oThis = this;
		var nextFunc = function() {
			oThis.animate();
		};
		this.animationTimeoutId = window.setTimeout(nextFunc, frameInterval);
		var nextCallString = this.callStrings[this.animationIndex + 1];
		if (nextCallString) {
			this.callTimeoutId = window.setTimeout(nextCallString, frameInterval);
		}
	}
}