var imageFiles_7t_31 = new Array();
imageFiles_7t_31['0'] = new Array ('_images/7t_Events.gif', '_images/7t_EventsMouseover.gif');
imageFiles_7t_31['1'] = new Array ('_images/7t_Calendar.gif', '_images/7t_CalendarMouseover.gif');
imageFiles_7t_31['2'] = new Array ('_images/7t_Outreach.gif', '_images/7t_OutreachMouseover.gif');
imageFiles_7t_31['3'] = new Array ('_images/7t_Resources.gif', '_images/7t_ResourcesMouseover.gif');

function image_on_7t_31 (position) {
   var doc = eval("document.image7t_31" + position);
   doc.src = imageFiles_7t_31[position][1];
}

function image_off_7t_31 (position) {
   var doc = eval("document.image7t_31" + position);
   doc.src = imageFiles_7t_31[position][0];
}