var pause = 4000;
var n = 0;

var imgs = new Array("../images/ss_c5.jpg", "../images/ss_olympic_ring_airport.jpg", "../images/ss_tower_Two.jpg");
var captions = new Array("Dual Lift - Airport Hangar", "Olympic Rings at YVR", "Tower Crane Project - Coquitlam BC");

// preload all the images

var preload = new Array();

for( var i = 0; i < imgs.length; i++ )
{
  preload[i] = new Image();
  preload[i].src = imgs[i];
}

// end preload

function rotate()
  {
     document.images.mobile.src = imgs[n];
     var divTag = document.getElementById("caption");
     divTag.innerHTML = captions[n];
     
     if (n == (imgs.length -1) )
        n = 0;
     else
        n++;
     setTimeout("rotate()", pause);
  }
 
window.onload = rotate;