var imageFiles_4o_1 = new Array();
imageFiles_4o_1['0'] = new Array ('_images/4o_Home.gif', '_images/4o_HomeMouseover.gif');
imageFiles_4o_1['1'] = new Array ('_images/4o_Catalog.gif', '_images/4o_CatalogMouseover.gif');
imageFiles_4o_1['2'] = new Array ('_images/4o_Contact_Us.gif', '_images/4o_Contact_UsMouseover.gif');
imageFiles_4o_1['3'] = new Array ('_images/4o_About_Us.gif', '_images/4o_About_UsMouseover.gif');
imageFiles_4o_1['4'] = new Array ('_images/4o_Getting_Started.gif', '_images/4o_Getting_StartedMouseover.gif');

function image_on_4o_1 (position) {
   var doc = eval("document.image4o_1" + position);
   doc.src = imageFiles_4o_1[position][1];
}

function image_off_4o_1 (position) {
   var doc = eval("document.image4o_1" + position);
   doc.src = imageFiles_4o_1[position][0];
}