var imageFiles_y_850 = new Array();
imageFiles_y_850['0'] = new Array ('_images/y_Home.gif', '_images/y_HomeMouseover.gif');
imageFiles_y_850['1'] = new Array ('_images/y_About_Us.gif', '_images/y_About_UsMouseover.gif');
imageFiles_y_850['2'] = new Array ('_images/y_Request_Form.gif', '_images/y_Request_FormMouseover.gif');
imageFiles_y_850['3'] = new Array ('_images/y_Contact_Us.gif', '_images/y_Contact_UsMouseover.gif');
imageFiles_y_850['4'] = new Array ('_images/y_Price_List.gif', '_images/y_Price_ListMouseover.gif');
imageFiles_y_850['5'] = new Array ('_images/y_Announcements.gif', '_images/y_AnnouncementsMouseover.gif');
imageFiles_y_850['6'] = new Array ('_images/y_Promotions.gif', '_images/y_PromotionsMouseover.gif');
imageFiles_y_850['7'] = new Array ('_images/y_Careers.gif', '_images/y_CareersMouseover.gif');

function image_on_y_850 (position) {
   var doc = eval("document.imagey_850" + position);
   doc.src = imageFiles_y_850[position][1];
}

function image_off_y_850 (position) {
   var doc = eval("document.imagey_850" + position);
   doc.src = imageFiles_y_850[position][0];
}