var imageFiles_77_28 = new Array();
imageFiles_77_28['0'] = new Array ('_images/77_Pics.gif', '_images/77_PicsMouseover.gif');

function image_on_77_28 (position) {
   var doc = eval("document.image77_28" + position);
   doc.src = imageFiles_77_28[position][1];
}

function image_off_77_28 (position) {
   var doc = eval("document.image77_28" + position);
   doc.src = imageFiles_77_28[position][0];
}