var imageFiles_a3_13 = new Array();
imageFiles_a3_13['0'] = new Array ('_images/a3_Upcoming_Events.gif', '_images/a3_Upcoming_EventsMouseover.gif');

function image_on_a3_13 (position) {
   var doc = eval("document.imagea3_13" + position);
   doc.src = imageFiles_a3_13[position][1];
}

function image_off_a3_13 (position) {
   var doc = eval("document.imagea3_13" + position);
   doc.src = imageFiles_a3_13[position][0];
}