var delay = 3000; // Time delay between rotates, 1000 = 1 second
var noOfImgs = 4;

pic0 = new Image(668,310);
pic0.src = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero1_v2.jpg";
pic1 = new Image(668,310);
pic1.src = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero2.jpg";
pic2 = new Image(668,310);
pic2.src = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero3.jpg";
pic3 = new Image(668,310);
pic3.src = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero4.jpg";

var imgArry = new Array()
   imgArry[0] = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero1_v2.jpg";
   imgArry[1] = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero2.jpg";
   imgArry[2] = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero3.jpg";
   imgArry[3] = "http://media.phonehouse.com/cpw-sales/static/images/landing_pages/products/se_w995_hero4.jpg";

function rotateImage(imgNo) {
   clearTimeout(timerId);

   if(imgNo == noOfImgs) {
      imgNo = 0;
   } else {
      document.getElementById('rotatedImg').src = imgArry[imgNo];
      imgNo++;
   }

   var recur_call = "rotateImage('" + imgNo + "')";

   setTimeout(recur_call, delay);
}

// Delay before starting rotation
var timerId = setTimeout('rotateImage(0)', 3000);