var imageFiles_3nb_1 = new Array();
imageFiles_3nb_1['0'] = new Array ('_images/3nb_S_A_C_.gif', '_images/3nb_S_A_C_Mouseover.gif');
imageFiles_3nb_1['1'] = new Array ('_images/3nb_Lateral_Move.gif', '_images/3nb_Lateral_MoveMouseover.gif');
imageFiles_3nb_1['2'] = new Array ('_images/3nb_Center_Pivots.gif', '_images/3nb_Center_PivotsMouseover.gif');

function image_on_3nb_1 (position) {
   var doc = eval("document.image3nb_1" + position);
   doc.src = imageFiles_3nb_1[position][1];
}

function image_off_3nb_1 (position) {
   var doc = eval("document.image3nb_1" + position);
   doc.src = imageFiles_3nb_1[position][0];
}