2D loop going through the same 10 values rather than through 100 - arrays

Question

I'm not very sure how to approach this problem. Basically, I have an algorithm that loops through 100 buttons (10 rows of 10) and assigns a number value based on a randomized start and end point. When clicked, the buttons should enter the next portion of a game, and take themselves off the map. To do this, I used this code:
public function createMap()
{
var startPointX:int = int(10 * Math.random()); //creates random values that set the x and y values of the start and end points
var startPointY:int = int(10 * Math.random());
var endPointX:int = int(10 * Math.random());
var endPointY:int = int(10 * Math.random());
var spaceDiffX:int = startPointX - endPointX; //the difference in X values
var spaceDiffY:int = startPointY - endPointY; //the difference in Y values
//Creation loop - loops through all of the buttons to create them
for (i = 0; i <= 9; i++)
{
mapY[i] = mapX; //Adds the rows into each column
for (j = 0; j <= 9; j++)
{
mapY[i][j] = new LocationButton(); //Creates a new button
mapY[i][j].x = 6 * 20 * i; //Sets X position
mapY[i][j].y = 6 * 10 * j; //Sets Y position
//places start point
if (i == startPointX && j == startPointY) //checks if this point on the grid is equal to the random start point
{
mapY[i][j].buttonType = 1; //sets it to the start point
}
//places end point
if (i == endPointX && j == endPointY) //checks if this point is equal to the random end point
{
mapY[i][j].buttonType = 2; //sets it to the end point
}
//finds path on x axis
if (i != startPointX && j == startPointY) //checks if this point is on the same Y value as the start point
{
if (spaceDiffX >= 0) //checks to see if the start point is on the left or right of the end point, left is negative, right is positive
{
if (i < startPointX && i >= endPointX) //checks if i is between the start X and end X
{
mapY[i][j].buttonType = 3; //sets it to a "shortest path point"
}
}
else
{
if (i > startPointX && i <= endPointX) //checks to see if i is between the start X and end X
{
mapY[i][j].buttonType = 3; //sets it to a "shortest path point"
}
}
}
if (j != startPointY && i == endPointX) //checks if this point is on the same X value as the end point
{
if (spaceDiffY >= 0) //checks to see if the start point is over or under the end point, above is positive, below is negative
{
if (j < startPointY && j >= endPointY) //checks if j is between the end Y and the start Y
{
mapY[i][j].buttonType = 3; //sets it to a "shortest path point"
}
}
else
{
if (j > startPointY && j <= endPointY)
{
mapY[i][j].buttonType = 3; //sets it to a "shortest path point"
}
}
}
if (mapY[i][j].buttonType != 0) //checks whether or not the button should be added
{
mapY[i][j].addEventListener(MouseEvent.CLICK, createBattleGUI); //adds event listener
stage.addChild(mapY[i][j]); //adds it to stage
}
}
}
}
The problem with this is how the code after the eventListener acts, however. The function it calls starts with this loop:
for (i = 0; i <= 9; i++)
{
for (j = 0; j <= 9; j++)
{
if (mapY[i][j].buttonType != 0)
{
stage.removeChild(mapY[i][j]);
}
}
}
Once that loop goes through, it -should- remove all of the buttons. However, it doesn't. I started tracing some variables, and noticed that in the second loop, it is actually looping through the same 10 objects 10 times, instead of looping through all 100 objects. The * denotes the trace statement in the first for loop (before the event), and those without it are the buttons being traced in the second for loop:
name - buttonType - i - j
*instance33 1 1 6
*instance53 3 2 6
*instance73 3 3 6
*instance93 3 4 6
*instance113 3 5 6
*instance133 3 6 6
*instance153 3 7 6
*instance173 3 8 6
instance181 0 0 0
instance183 0 0 1
instance185 0 0 2
instance187 0 0 3
instance189 0 0 4
instance191 0 0 5
instance193 0 0 6
instance195 0 0 7
instance197 0 0 8
instance199 0 0 9
instance181 0 1 0
instance183 0 1 1
instance185 0 1 2
instance187 0 1 3
instance189 0 1 4
instance191 0 1 5
instance193 0 1 6
instance195 0 1 7
instance197 0 1 8
instance199 0 1 9
I realize that it is a bit of a long question, but I can't figure this out for the life of me. Thanks for any help.