var imageFiles_31_1 = new Array();
imageFiles_31_1['0'] = new Array ('_images/31_PLANNER.gif', '_images/31_PLANNERMouseover.gif');
imageFiles_31_1['1'] = new Array ('_images/31_MUSIC.gif', '_images/31_MUSICMouseover.gif');
imageFiles_31_1['2'] = new Array ('_images/31_EXTRAS.gif', '_images/31_EXTRASMouseover.gif');
imageFiles_31_1['3'] = new Array ('_images/31_GALLERY.gif', '_images/31_GALLERYMouseover.gif');

function image_on_31_1 (position) {
   var doc = eval("document.image31_1" + position);
   doc.src = imageFiles_31_1[position][1];
}

function image_off_31_1 (position) {
   var doc = eval("document.image31_1" + position);
   doc.src = imageFiles_31_1[position][0];
}