var imageFiles_18_13 = new Array();
imageFiles_18_13['0'] = new Array ('_images/18_index.gif', '_images/18_indexMouseover.gif');
imageFiles_18_13['1'] = new Array ('_images/18_Services.gif', '_images/18_ServicesMouseover.gif');
imageFiles_18_13['2'] = new Array ('_images/18_Protection_Plan.gif', '_images/18_Protection_PlanMouseover.gif');
imageFiles_18_13['3'] = new Array ('_images/18_Testimonials.gif', '_images/18_TestimonialsMouseover.gif');
imageFiles_18_13['4'] = new Array ('_images/18_Contact_Us.gif', '_images/18_Contact_UsMouseover.gif');
imageFiles_18_13['5'] = new Array ('_images/18_Info_Request.gif', '_images/18_Info_RequestMouseover.gif');

function image_on_18_13 (position) {
   var doc = eval("document.image18_13" + position);
   doc.src = imageFiles_18_13[position][1];
}

function image_off_18_13 (position) {
   var doc = eval("document.image18_13" + position);
   doc.src = imageFiles_18_13[position][0];
}