var imageFiles_bf_13 = new Array();
imageFiles_bf_13['0'] = new Array ('_images/bf_Home.gif', '_images/bf_HomeMouseover.gif');
imageFiles_bf_13['1'] = new Array ('_images/bf_About_Us.gif', '_images/bf_About_UsMouseover.gif');
imageFiles_bf_13['2'] = new Array ('_images/bf_Contact_Us.gif', '_images/bf_Contact_UsMouseover.gif');
imageFiles_bf_13['3'] = new Array ('_images/bf_Clients.gif', '_images/bf_ClientsMouseover.gif');

function image_on_bf_13 (position) {
   var doc = eval("document.imagebf_13" + position);
   doc.src = imageFiles_bf_13[position][1];
}

function image_off_bf_13 (position) {
   var doc = eval("document.imagebf_13" + position);
   doc.src = imageFiles_bf_13[position][0];
}