var imageFiles_na_57 = new Array();
imageFiles_na_57['0'] = new Array ('_images/na_HOME.gif', '_images/na_HOMEMouseover.gif');
imageFiles_na_57['1'] = new Array ('_images/na_CAMPS.gif', '_images/na_CAMPSMouseover.gif');
imageFiles_na_57['2'] = new Array ('_images/na_STAFF.gif', '_images/na_STAFFMouseover.gif');
imageFiles_na_57['3'] = new Array ('_images/na_YOUTH.gif', '_images/na_YOUTHMouseover.gif');
imageFiles_na_57['4'] = new Array ('_images/na_COLLEGE.gif', '_images/na_COLLEGEMouseover.gif');
imageFiles_na_57['5'] = new Array ('_images/na_PRO.gif', '_images/na_PROMouseover.gif');
imageFiles_na_57['6'] = new Array ('_images/na_TESTIMONIALS.gif', '_images/na_TESTIMONIALSMouseover.gif');
imageFiles_na_57['7'] = new Array ('_images/na_LINKS.gif', '_images/na_LINKSMouseover.gif');
imageFiles_na_57['8'] = new Array ('_images/na_ARTICLES.gif', '_images/na_ARTICLESMouseover.gif');
imageFiles_na_57['9'] = new Array ('_images/na_PHOTOS.gif', '_images/na_PHOTOSMouseover.gif');
imageFiles_na_57['10'] = new Array ('_images/na_STORE.gif', '_images/na_STOREMouseover.gif');
imageFiles_na_57['11'] = new Array ('_images/na_CONTACT.gif', '_images/na_CONTACTMouseover.gif');

function image_on_na_57 (position) {
   var doc = eval("document.imagena_57" + position);
   doc.src = imageFiles_na_57[position][1];
}

function image_off_na_57 (position) {
   var doc = eval("document.imagena_57" + position);
   doc.src = imageFiles_na_57[position][0];
}