var imageFiles_b8_1 = new Array();
imageFiles_b8_1['0'] = new Array ('_images/b8_Rollaharrow.gif', '_images/b8_RollaharrowMouseover.gif');
imageFiles_b8_1['1'] = new Array ('_images/b8_Land_Plane.gif', '_images/b8_Land_PlaneMouseover.gif');
imageFiles_b8_1['2'] = new Array ('_images/b8_Packer.gif', '_images/b8_PackerMouseover.gif');

function image_on_b8_1 (position) {
   var doc = eval("document.imageb8_1" + position);
   doc.src = imageFiles_b8_1[position][1];
}

function image_off_b8_1 (position) {
   var doc = eval("document.imageb8_1" + position);
   doc.src = imageFiles_b8_1[position][0];
}