var imageFiles_2z_1 = new Array();
imageFiles_2z_1['0'] = new Array ('_images/2z_PLANNER.gif', '_images/2z_PLANNERMouseover.gif');

function image_on_2z_1 (position) {
   var doc = eval("document.image2z_1" + position);
   doc.src = imageFiles_2z_1[position][1];
}

function image_off_2z_1 (position) {
   var doc = eval("document.image2z_1" + position);
   doc.src = imageFiles_2z_1[position][0];
}