var imageFiles_68_40 = new Array();
imageFiles_68_40['0'] = new Array ('_images/68_Brochure_Catalog.gif', '_images/68_Brochure_CatalogMouseover.gif');
imageFiles_68_40['1'] = new Array ('_images/68_Press_Releases.gif', '_images/68_Press_ReleasesMouseover.gif');
imageFiles_68_40['2'] = new Array ('_images/68_Article_Archive.gif', '_images/68_Article_ArchiveMouseover.gif');

function image_on_68_40 (position) {
   var doc = eval("document.image68_40" + position);
   doc.src = imageFiles_68_40[position][1];
}

function image_off_68_40 (position) {
   var doc = eval("document.image68_40" + position);
   doc.src = imageFiles_68_40[position][0];
}