var imageFiles_sp_21 = new Array();
imageFiles_sp_21['0'] = new Array ('_images/sp_History.gif', '_images/sp_HistoryMouseover.gif');
imageFiles_sp_21['1'] = new Array ('_images/sp_Photos.gif', '_images/sp_PhotosMouseover.gif');
imageFiles_sp_21['2'] = new Array ('_images/sp_TributePage.gif', '_images/sp_TributePageMouseover.gif');
imageFiles_sp_21['3'] = new Array ('_images/sp_Videos.gif', '_images/sp_VideosMouseover.gif');
imageFiles_sp_21['4'] = new Array ('_images/sp_FaceBook.gif', '_images/sp_FaceBookMouseover.gif');
imageFiles_sp_21['5'] = new Array ('_images/sp_BikeStorage.gif', '_images/sp_BikeStorageMouseover.gif');
imageFiles_sp_21['6'] = new Array ('_images/sp_Docs_Blog.gif', '_images/sp_Docs_BlogMouseover.gif');
imageFiles_sp_21['7'] = new Array ('_images/sp_Links.gif', '_images/sp_LinksMouseover.gif');

function image_on_sp_21 (position) {
   var doc = eval("document.imagesp_21" + position);
   doc.src = imageFiles_sp_21[position][1];
}

function image_off_sp_21 (position) {
   var doc = eval("document.imagesp_21" + position);
   doc.src = imageFiles_sp_21[position][0];
}