Help making distance between all mcs at equal distance from each other on mouseover

programming flash
1

hi
I am posting my code that attaches the movieclips on stage

function attachMovieClip ()
{
	for (var i:int=0; i<10; i++)
	{
		var newMc:mcContainer = new mcContainer();
		newMc.y = 100;
		newMc.x = 0 + (newMc.width*i) + (i*10);
	        newMc.name = 'g_'+i.toString();
		newMc.addEventListener (MouseEvent.MOUSE_OVER,expand);
		newMc.addEventListener (MouseEvent.MOUSE_OUT,contract);

		addChild (newMc);

	}
}

i was hoping that when the newMc expands, all other mc would keep the same distance between each other as at initialisation. I not able to figure how to do it.

Any help would be very much appreciated. maybe even an earlier post or llink where similar query was explained.

Thank you