var imageFiles_9v_13 = new Array();
imageFiles_9v_13['0'] = new Array ('_images/9v_Directions.gif', '_images/9v_DirectionsMouseover.gif');

function image_on_9v_13 (position) {
   var doc = eval("document.image9v_13" + position);
   doc.src = imageFiles_9v_13[position][1];
}

function image_off_9v_13 (position) {
   var doc = eval("document.image9v_13" + position);
   doc.src = imageFiles_9v_13[position][0];
}