Simply do not use the onMouseOut-Command.
That means, just when you do a —> onMouseIn → an image would be changed and nothing would happen, if you would hover out of the image, till you hover over the next image.
Simply do not use the onMouseOut-Command.
That means, just when you do a —> onMouseIn → an image would be changed and nothing would happen, if you would hover out of the image, till you hover over the next image.