var imageFiles_90_17 = new Array();
imageFiles_90_17['0'] = new Array ('_images/90_OVERSEAS_AID.gif', '_images/90_OVERSEAS_AIDMouseover.gif');

function image_on_90_17 (position) {
   var doc = eval("document.image90_17" + position);
   doc.src = imageFiles_90_17[position][1];
}

function image_off_90_17 (position) {
   var doc = eval("document.image90_17" + position);
   doc.src = imageFiles_90_17[position][0];
}