function swapImage() { 
theImages = new Array("image/benner1.png", "image/benner2.png", "image/benner3.png"); 
whichImage = Math.floor(Math.random()*theImages.length); 
document.write('<IMG title="Volunteer in India" alt="Volunteer in India" width="654" height="243" SRC="' +theImages[whichImage]+ '">'); 
}