var imageFiles_f_19 = new Array();
imageFiles_f_19['0'] = new Array ('_images/f_Contact_Us.gif', '_images/f_Contact_UsMouseover.gif');

function image_on_f_19 (position) {
   var doc = eval("document.imagef_19" + position);
   doc.src = imageFiles_f_19[position][1];
}

function image_off_f_19 (position) {
   var doc = eval("document.imagef_19" + position);
   doc.src = imageFiles_f_19[position][0];
}