var imageFiles_40_89 = new Array();
imageFiles_40_89['0'] = new Array ('_images/40_Home.gif', '_images/40_HomeMouseover.gif');
imageFiles_40_89['1'] = new Array ('_images/40_About_Us.gif', '_images/40_About_UsMouseover.gif');
imageFiles_40_89['2'] = new Array ('_images/40_Contact_Us.gif', '_images/40_Contact_UsMouseover.gif');

function image_on_40_89 (position) {
   var doc = eval("document.image40_89" + position);
   doc.src = imageFiles_40_89[position][1];
}

function image_off_40_89 (position) {
   var doc = eval("document.image40_89" + position);
   doc.src = imageFiles_40_89[position][0];
}