var imageFiles_f2_16 = new Array();
imageFiles_f2_16['0'] = new Array ('_images/f2_Trauma.gif', '_images/f2_TraumaMouseover.gif');
imageFiles_f2_16['1'] = new Array ('_images/f2_Allergies.gif', '_images/f2_AllergiesMouseover.gif');
imageFiles_f2_16['2'] = new Array ('_images/f2_Keratoconus.gif', '_images/f2_KeratoconusMouseover.gif');

function image_on_f2_16 (position) {
   var doc = eval("document.imagef2_16" + position);
   doc.src = imageFiles_f2_16[position][1];
}

function image_off_f2_16 (position) {
   var doc = eval("document.imagef2_16" + position);
   doc.src = imageFiles_f2_16[position][0];
}