function getLeft(element) {
result = element.offsetLeft;
if (element.offsetParent) result += getLeft(element.offsetParent);
return result;
}

function getTop(element) {
result = element.offsetTop;
if (element.offsetParent) result += getTop(element.offsetParent);
return result;
}
function von (a,t,l) {
  a.style.left = l-295;
  a.style.top = t-22;
  a.style.visibility = "visible";
}
function voff(a) {
  a.style.visibility = "hidden";
}