var imageFiles_ba_1 = new Array();
imageFiles_ba_1['0'] = new Array ('_images/ba_Home.gif', '_images/ba_HomeMouseover.gif');
imageFiles_ba_1['1'] = new Array ('_images/ba_Biography.gif', '_images/ba_BiographyMouseover.gif');

function image_on_ba_1 (position) {
   var doc = eval("document.imageba_1" + position);
   doc.src = imageFiles_ba_1[position][1];
}

function image_off_ba_1 (position) {
   var doc = eval("document.imageba_1" + position);
   doc.src = imageFiles_ba_1[position][0];
}