Adding an image once but using many times.

See more:

Flash

What I want to do is build WALL of images, say of 2 random images.
X0X0X0X0X0 (where X and O are the images.)

Now to load these I normally would use a for loop such as (code isnt exact, but hope u get the idea)

imageArray = "X", "O";
for (x = 0; x < numberOfImagesInWall; x++){
randomNum = random(2)
imageName = imageArray[randomNum];
loadimage (imageName)

.....etc....

}

When I use this method I find it loads the images EACH time for X and O. I am wondering if there is a way I can preload the image of X and O and just reuse them anytime I want, where no loading is involved.