var imageFiles_bm_7 = new Array();
imageFiles_bm_7['0'] = new Array ('_images/bm_Home.gif', '_images/bm_HomeMouseover.gif');
imageFiles_bm_7['1'] = new Array ('_images/bm_Catalog.gif', '_images/bm_CatalogMouseover.gif');
imageFiles_bm_7['2'] = new Array ('_images/bm_Authors.gif', '_images/bm_AuthorsMouseover.gif');
imageFiles_bm_7['3'] = new Array ('_images/bm_Contact_Us.gif', '_images/bm_Contact_UsMouseover.gif');
imageFiles_bm_7['4'] = new Array ('_images/bm_About_Us.gif', '_images/bm_About_UsMouseover.gif');

function image_on_bm_7 (position) {
   var doc = eval("document.imagebm_7" + position);
   doc.src = imageFiles_bm_7[position][1];
}

function image_off_bm_7 (position) {
   var doc = eval("document.imagebm_7" + position);
   doc.src = imageFiles_bm_7[position][0];
}