// Preload images
if(document.images){
  var gallery_main = new Image(); gallery_main.src = "images/store1.jpg";
  var gallery_img1 = new Image(); gallery_img1.src = "images/store1.jpg";
  var gallery_img2 = new Image(); gallery_img2.src = "images/store2.jpg";
  var gallery_img3 = new Image(); gallery_img3.src = "images/store3.jpg";
  var gallery_img4 = new Image(); gallery_img4.src = "images/store4.jpg";
 var gallery_img5 = new Image(); gallery_img5.src = "images/store5.jpg";
 var gallery_img6 = new Image(); gallery_img6.src = "images/store6.jpg";
 var gallery_img7 = new Image(); gallery_img7.src = "images/store7.jpg";
var gallery_img8 = new Image(); gallery_img8.src = "images/store8.jpg";
var gallery_img9 = new Image(); gallery_img9.src = "images/store9.jpg";

}

function gallery_change(imageName){
  if(document.images){ document['gallery_main'].src = eval(imageName + ".src"); }
}

function gallery_changeBack(){
  if(document.images){ document['gallery_main'].src = main.src; }
}