var imageFiles_ay_4 = new Array();
imageFiles_ay_4['0'] = new Array ('_images/ay_Checkerboard.gif', '_images/ay_CheckerboardMouseover.gif');
imageFiles_ay_4['1'] = new Array ('_images/ay_Favor_Catalog.gif', '_images/ay_Favor_CatalogMouseover.gif');
imageFiles_ay_4['2'] = new Array ('_images/ay_PrintMe_Ribbons.gif', '_images/ay_PrintMe_RibbonsMouseover.gif');
imageFiles_ay_4['3'] = new Array ('_images/ay_Bags___Boxes.gif', '_images/ay_Bags___BoxesMouseover.gif');

function image_on_ay_4 (position) {
   var doc = eval("document.imageay_4" + position);
   doc.src = imageFiles_ay_4[position][1];
}

function image_off_ay_4 (position) {
   var doc = eval("document.imageay_4" + position);
   doc.src = imageFiles_ay_4[position][0];
}