var imageFiles_4_15 = new Array();
imageFiles_4_15['0'] = new Array ('_images/4_Home.gif', '_images/4_HomeMouseover.gif');
imageFiles_4_15['1'] = new Array ('_images/4_About_Us.gif', '_images/4_About_UsMouseover.gif');
imageFiles_4_15['2'] = new Array ('_images/4_Board_of_Directors.gif', '_images/4_Board_of_DirectorsMouseover.gif');
imageFiles_4_15['3'] = new Array ('_images/4_Committees.gif', '_images/4_CommitteesMouseover.gif');
imageFiles_4_15['4'] = new Array ('_images/4_Maps.gif', '_images/4_MapsMouseover.gif');
imageFiles_4_15['5'] = new Array ('_images/4_Links.gif', '_images/4_LinksMouseover.gif');
imageFiles_4_15['6'] = new Array ('_images/4_Staff.gif', '_images/4_StaffMouseover.gif');
imageFiles_4_15['7'] = new Array ('_images/4_Event_Calendar.gif', '_images/4_Event_CalendarMouseover.gif');
imageFiles_4_15['8'] = new Array ('_images/4_Programs.gif', '_images/4_ProgramsMouseover.gif');

function image_on_4_15 (position) {
   var doc = eval("document.image4_15" + position);
   doc.src = imageFiles_4_15[position][1];
}

function image_off_4_15 (position) {
   var doc = eval("document.image4_15" + position);
   doc.src = imageFiles_4_15[position][0];
}