var imageFiles_a_3 = new Array();
imageFiles_a_3['0'] = new Array ('_images/a_About_Us.gif', '_images/a_About_UsMouseover.gif');
imageFiles_a_3['1'] = new Array ('_images/a_Testimonials.gif', '_images/a_TestimonialsMouseover.gif');
imageFiles_a_3['2'] = new Array ('_images/a_Contact_Us.gif', '_images/a_Contact_UsMouseover.gif');

function image_on_a_3 (position) {
   var doc = eval("document.imagea_3" + position);
   doc.src = imageFiles_a_3[position][1];
}

function image_off_a_3 (position) {
   var doc = eval("document.imagea_3" + position);
   doc.src = imageFiles_a_3[position][0];
}