Default XML Mouse Scoller won't stop at right spot

[codenik]

Hello,

I'm trying to create a gallery in which images are fed to the gallery by an XML database. I want them to end up in a mouse sensitive scroll gallery. I get this far but keep running into a problem with getting all of the images to stop scrolling at their end point (for my case the right hand corner).

The code controlling the mouse scroll is:
Code:

function Scrollable (e:Event){
var centerX = stage.stageWidth /2 ;
var galleryWidth = full_mc.width;
var speed = 0;
//SET SPEED BASED ON CURSOR X	
			speed = -(.02 * (mouseX - centerX));
//UPDATE GALLERY SLIDING SPEED BASED ON CURSOR POSITION
		full_mc.x += speed;	
		if(full_mc.x > stage.stageWidth/2){
//Shift gallery position to reset on right side
		full_mc.x = -(0);
};
//Determine if gallery has ended on left side
		if(full_mc.x < (-galleryWidth/2.67)){
		//Shift gallery position to reset on right side
		full_mc.x = (-galleryWidth/2.67);
};
};

I'm using AS3. If anyone has any ideas they would be gargantuanally (yes) appreciated.