// keeping page out of frames

if (top.location != self.location) {
   top.location = self.location   }

// rollover function

var roll_object;
function roll_over(span_id, src_id, keep_visible) {
//  alert ('not used');
span = document.getElementById(span_id);
src = document.getElementById(src_id);
roll_object = span;
span.style.visibility = 'visible';
if (!keep_visible){
src.onmouseout = roll_out;
}
}

function roll_out() {
roll_object.style.visibility = 'hidden';
}