Elasticity Tween Edit - from move to scale

Hi everyone I’m looking to create a scaleTo Tween with elasticity from the following moveit Tween code.

This is the original AS:



MovieClip.prototype.moveit = function (centerx, centery, inertia, k) { 
	vx = -this._x+centerx;
	vy = -this._y+centery;
	this.xp = this.xp*inertia+vx*k;
	this.yp = this.yp*inertia+vy*k;
	this._x += this.xp;
	this._y += this.yp;
}


Called like so:



onClipEvent (enterFrame) {
	this.moveit(11, 28, .75, 0.1);
}
onClipEvent(load) {
	var xp = 0;
	var yp = 0;
}


How do I make this safe for pixel fonts? in other words no blurring during the tween?