var productImages = [];

// Preloaded image. ID = 9
productImages[9] = new Image();
productImages[9].src="/image/product/medium/crimsonrosebag_front.jpg";
productImages[9].alt = "The Crimson Rose Bag is perfect to put your keys, makeup and mobile phone in";

         

// Preloaded image. ID = 10
productImages[10] = new Image();
productImages[10].src="/image/product/medium/crimsonrosebag_a.jpg";
productImages[10].alt = "The Crimson Rose Bag is great to carry with you to grab a coffee with your friends";

         

// Preloaded image. ID = 21
productImages[21] = new Image();
productImages[21].src="/image/product/medium/crimsonrose_c.jpg";
productImages[21].alt = "The Crimson Rose Bag is perfect to put in your tote, purse, backpack";

         
function swapImage(image) {
   document.prodImageMain.src = productImages[image].src; 
}