var imageFiles_nw_4 = new Array();
imageFiles_nw_4['0'] = new Array ('_images/nw_Race_Info.gif', '_images/nw_Race_InfoMouseover.gif');
imageFiles_nw_4['1'] = new Array ('_images/nw_Registration_Form.gif', '_images/nw_Registration_FormMouseover.gif');
imageFiles_nw_4['2'] = new Array ('_images/nw_Lodging.gif', '_images/nw_LodgingMouseover.gif');
imageFiles_nw_4['3'] = new Array ('_images/nw_Race_Results_photos.gif', '_images/nw_Race_Results_photosMouseover.gif');

function image_on_nw_4 (position) {
   var doc = eval("document.imagenw_4" + position);
   doc.src = imageFiles_nw_4[position][1];
}

function image_off_nw_4 (position) {
   var doc = eval("document.imagenw_4" + position);
   doc.src = imageFiles_nw_4[position][0];
}