// JavaScript Document


var banner = [ 
  "banner1.png",  "banner2.png",  "banner3.png",  "banner4.png", 
  "banner5.png",  "banner6.png"  // Note: no comma on last entry 
]; 

var caption = [ 
  "banner #1",   
  "banner #2",   
  "banner #3",   
  "banner #4", 
  "banner #5",  "banner #6"          // No comma on last entry 
]; 

function randImgCap() { 
  random = Math.floor(Math.random() * banner.length); 
  document.getElementById('randomImage').src=banner[random]; 
}