var imageFiles_af_23 = new Array();
imageFiles_af_23['0'] = new Array ('_images/af_Find_A_Clinic.gif', '_images/af_Find_A_ClinicMouseover.gif');

function image_on_af_23 (position) {
   var doc = eval("document.imageaf_23" + position);
   doc.src = imageFiles_af_23[position][1];
}

function image_off_af_23 (position) {
   var doc = eval("document.imageaf_23" + position);
   doc.src = imageFiles_af_23[position][0];
}