var imageFiles_1jf_1 = new Array();
imageFiles_1jf_1['0'] = new Array ('_images/1jf_OnTrac.gif', '_images/1jf_OnTracMouseover.gif');
imageFiles_1jf_1['1'] = new Array ('_images/1jf_GPS_Controls.gif', '_images/1jf_GPS_ControlsMouseover.gif');
imageFiles_1jf_1['2'] = new Array ('_images/1jf_Systems.gif', '_images/1jf_SystemsMouseover.gif');
imageFiles_1jf_1['3'] = new Array ('_images/1jf_Contact_Us.gif', '_images/1jf_Contact_UsMouseover.gif');

function image_on_1jf_1 (position) {
   var doc = eval("document.image1jf_1" + position);
   doc.src = imageFiles_1jf_1[position][1];
}

function image_off_1jf_1 (position) {
   var doc = eval("document.image1jf_1" + position);
   doc.src = imageFiles_1jf_1[position][0];
}