imgNav1 = new Image();
imgNav1.src = "images/b_nav1.jpg";
imgNav1On = new Image();
imgNav1On.src = "images/bs_nav1.jpg";

imgNav2 = new Image();
imgNav2.src = "images/b_nav2.jpg";
imgNav2On = new Image();
imgNav2On.src = "images/bs_nav2.jpg";

imgNav3 = new Image();
imgNav3.src = "images/b_nav3.jpg";
imgNav3On = new Image();
imgNav3On.src = "images/bs_nav3.jpg";

//---------------------------------------------------------------------
//
// img_act
//
//---------------------------------------------------------------------
function img_act(imageName, imageObject)
{   
   document.images[imageName].src = eval(imageObject);
}

//---------------------------------------------------------------------
//
// img_next
//
//---------------------------------------------------------------------
function img_next(imageName, path, val, max)
{
   gPhotoNum+= val;
   
   if (gPhotoNum > max)
      gPhotoNum = 1;
   if (gPhotoNum < 1)
      gPhotoNum = max;
   
   nextImg = path + gPhotoNum + ".jpg";

   //alert("num: " + gPhotoNum + ", next: " + nextImg);
   
   document.images[imageName].src = nextImg;
   
   return(false);
}