Using your mouse, move your cursor to the inside of the IPIX image. Your cursor will be replaced by a hand. By holding down your mouse button, the room will spin in whichever direction the hand is pointing. Moving your mouse from left to right, up or down, will change the direction your hand is pointing.
Your cursor will change to a magnifying glass just above the center of the image. Hold in your mouse button to zoom in or out. The plus symbol zooms in and the minus symbol zooms out.