var imageFiles_u6_1 = new Array();
imageFiles_u6_1['0'] = new Array ('_images/u6_Printer_Friendly.gif', '_images/u6_Printer_FriendlyMouseover.gif');

function image_on_u6_1 (position) {
   var doc = eval("document.imageu6_1" + position);
   doc.src = imageFiles_u6_1[position][1];
}

function image_off_u6_1 (position) {
   var doc = eval("document.imageu6_1" + position);
   doc.src = imageFiles_u6_1[position][0];
}