var imageFiles_dn_13 = new Array();
imageFiles_dn_13['0'] = new Array ('_images/dn_Kart_Clubs.gif', '_images/dn_Kart_ClubsMouseover.gif');
imageFiles_dn_13['1'] = new Array ('_images/dn_Kart_Tracks.gif', '_images/dn_Kart_TracksMouseover.gif');
imageFiles_dn_13['2'] = new Array ('_images/dn_Karting_Tips.gif', '_images/dn_Karting_TipsMouseover.gif');

function image_on_dn_13 (position) {
   var doc = eval("document.imagedn_13" + position);
   doc.src = imageFiles_dn_13[position][1];
}

function image_off_dn_13 (position) {
   var doc = eval("document.imagedn_13" + position);
   doc.src = imageFiles_dn_13[position][0];
}