var imageFiles_8_31 = new Array();
imageFiles_8_31['0'] = new Array ('_images/8_Home.gif', '_images/8_HomeMouseover.gif');
imageFiles_8_31['1'] = new Array ('_images/8_About_Us.gif', '_images/8_About_UsMouseover.gif');
imageFiles_8_31['2'] = new Array ('_images/8_Services.gif', '_images/8_ServicesMouseover.gif');
imageFiles_8_31['3'] = new Array ('_images/8_Doctors.gif', '_images/8_DoctorsMouseover.gif');
imageFiles_8_31['4'] = new Array ('_images/8_Staff.gif', '_images/8_StaffMouseover.gif');
imageFiles_8_31['5'] = new Array ('_images/8_Photo_Gallery.gif', '_images/8_Photo_GalleryMouseover.gif');
imageFiles_8_31['6'] = new Array ('_images/8_Health_Concerns.gif', '_images/8_Health_ConcernsMouseover.gif');
imageFiles_8_31['7'] = new Array ('_images/8_Vaccinations.gif', '_images/8_VaccinationsMouseover.gif');
imageFiles_8_31['8'] = new Array ('_images/8_Links.gif', '_images/8_LinksMouseover.gif');
imageFiles_8_31['9'] = new Array ('_images/8_Feedback.gif', '_images/8_FeedbackMouseover.gif');
imageFiles_8_31['10'] = new Array ('_images/8_Contact.gif', '_images/8_ContactMouseover.gif');

function image_on_8_31 (position) {
   var doc = eval("document.image8_31" + position);
   doc.src = imageFiles_8_31[position][1];
}

function image_off_8_31 (position) {
   var doc = eval("document.image8_31" + position);
   doc.src = imageFiles_8_31[position][0];
}