var imageFiles_j_13 = new Array();
imageFiles_j_13['0'] = new Array ('_images/j_Feedback.gif', '_images/j_FeedbackMouseover.gif');

function image_on_j_13 (position) {
   var doc = eval("document.imagej_13" + position);
   doc.src = imageFiles_j_13[position][1];
}

function image_off_j_13 (position) {
   var doc = eval("document.imagej_13" + position);
   doc.src = imageFiles_j_13[position][0];
}