var imageFiles_ed_21 = new Array();
imageFiles_ed_21['0'] = new Array ('_images/ed_HOME.gif', '_images/ed_HOMEMouseover.gif');

function image_on_ed_21 (position) {
   var doc = eval("document.imageed_21" + position);
   doc.src = imageFiles_ed_21[position][1];
}

function image_off_ed_21 (position) {
   var doc = eval("document.imageed_21" + position);
   doc.src = imageFiles_ed_21[position][0];
}