var imageFiles_tn_1 = new Array();
imageFiles_tn_1['0'] = new Array ('_images/tn_Catalog.gif', '_images/tn_CatalogMouseover.gif');
imageFiles_tn_1['1'] = new Array ('_images/tn_Bob_s_Staff.gif', '_images/tn_Bob_s_StaffMouseover.gif');
imageFiles_tn_1['2'] = new Array ('_images/tn_Contact_Us.gif', '_images/tn_Contact_UsMouseover.gif');
imageFiles_tn_1['3'] = new Array ('_images/tn_RV_Jokes.gif', '_images/tn_RV_JokesMouseover.gif');

function image_on_tn_1 (position) {
   var doc = eval("document.imagetn_1" + position);
   doc.src = imageFiles_tn_1[position][1];
}

function image_off_tn_1 (position) {
   var doc = eval("document.imagetn_1" + position);
   doc.src = imageFiles_tn_1[position][0];
}