var imageFiles_3d_15 = new Array();
imageFiles_3d_15['0'] = new Array ('_images/3d_Fish.gif', '_images/3d_FishMouseover.gif');

function image_on_3d_15 (position) {
   var doc = eval("document.image3d_15" + position);
   doc.src = imageFiles_3d_15[position][1];
}

function image_off_3d_15 (position) {
   var doc = eval("document.image3d_15" + position);
   doc.src = imageFiles_3d_15[position][0];
}