var imageFiles_pn_21 = new Array();
imageFiles_pn_21['0'] = new Array ('_images/pn_Home.gif', '_images/pn_HomeMouseover.gif');
imageFiles_pn_21['1'] = new Array ('_images/pn_Calendar_of_Events.gif', '_images/pn_Calendar_of_EventsMouseover.gif');

function image_on_pn_21 (position) {
   var doc = eval("document.imagepn_21" + position);
   doc.src = imageFiles_pn_21[position][1];
}

function image_off_pn_21 (position) {
   var doc = eval("document.imagepn_21" + position);
   doc.src = imageFiles_pn_21[position][0];
}