var imageFiles_xsiy_4 = new Array();
imageFiles_xsiy_4['0'] = new Array ('_images/xsiy_Notre_Dame.gif', '_images/xsiy_Notre_DameMouseover.gif');

function image_on_xsiy_4 (position) {
   var doc = eval("document.imagexsiy_4" + position);
   doc.src = imageFiles_xsiy_4[position][1];
}

function image_off_xsiy_4 (position) {
   var doc = eval("document.imagexsiy_4" + position);
   doc.src = imageFiles_xsiy_4[position][0];
}