var imageFiles_gw_23 = new Array();
imageFiles_gw_23['0'] = new Array ('_images/gw_Photo_Gallery.gif', '_images/gw_Photo_GalleryMouseover.gif');

function image_on_gw_23 (position) {
   var doc = eval("document.imagegw_23" + position);
   doc.src = imageFiles_gw_23[position][1];
}

function image_off_gw_23 (position) {
   var doc = eval("document.imagegw_23" + position);
   doc.src = imageFiles_gw_23[position][0];
}