var imageFiles_pz_31 = new Array();
imageFiles_pz_31['0'] = new Array ('_images/pz_Fixtures.gif', '_images/pz_FixturesMouseover.gif');

function image_on_pz_31 (position) {
   var doc = eval("document.imagepz_31" + position);
   doc.src = imageFiles_pz_31[position][1];
}

function image_off_pz_31 (position) {
   var doc = eval("document.imagepz_31" + position);
   doc.src = imageFiles_pz_31[position][0];
}