var imageFiles_4_73 = new Array();
imageFiles_4_73['0'] = new Array ('_images/4_Locations_Contact_Us.gif', '_images/4_Locations_Contact_UsMouseover.gif');
imageFiles_4_73['1'] = new Array ('_images/4_About_Us.gif', '_images/4_About_UsMouseover.gif');
imageFiles_4_73['2'] = new Array ('_images/4_Our_Physicians.gif', '_images/4_Our_PhysiciansMouseover.gif');
imageFiles_4_73['3'] = new Array ('_images/4_Feedback.gif', '_images/4_FeedbackMouseover.gif');

function image_on_4_73 (position) {
   var doc = eval("document.image4_73" + position);
   doc.src = imageFiles_4_73[position][1];
}

function image_off_4_73 (position) {
   var doc = eval("document.image4_73" + position);
   doc.src = imageFiles_4_73[position][0];
}