var imageFiles_8z_15 = new Array();
imageFiles_8z_15['0'] = new Array ('_images/8z_ABOUT_US.gif', '_images/8z_ABOUT_USMouseover.gif');
imageFiles_8z_15['1'] = new Array ('_images/8z_SERVICES.gif', '_images/8z_SERVICESMouseover.gif');

function image_on_8z_15 (position) {
   var doc = eval("document.image8z_15" + position);
   doc.src = imageFiles_8z_15[position][1];
}

function image_off_8z_15 (position) {
   var doc = eval("document.image8z_15" + position);
   doc.src = imageFiles_8z_15[position][0];
}