var imageFiles_fi_4 = new Array();
imageFiles_fi_4['0'] = new Array ('_images/fi_Spinal_Degeneration.gif', '_images/fi_Spinal_DegenerationMouseover.gif');
imageFiles_fi_4['1'] = new Array ('_images/fi_Your_Symptoms.gif', '_images/fi_Your_SymptomsMouseover.gif');
imageFiles_fi_4['2'] = new Array ('_images/fi_Services.gif', '_images/fi_ServicesMouseover.gif');
imageFiles_fi_4['3'] = new Array ('_images/fi_Nutrition_Store.gif', '_images/fi_Nutrition_StoreMouseover.gif');
imageFiles_fi_4['4'] = new Array ('_images/fi_Support.gif', '_images/fi_SupportMouseover.gif');

function image_on_fi_4 (position) {
   var doc = eval("document.imagefi_4" + position);
   doc.src = imageFiles_fi_4[position][1];
}

function image_off_fi_4 (position) {
   var doc = eval("document.imagefi_4" + position);
   doc.src = imageFiles_fi_4[position][0];
}