function inherit(objidParent,objidChild,objidGrandchild) {
if (document.layers) {
alert('sorry, no pretty layouts for netscape 4');
}
else if (document.getElementById) {
  
Parent = document.getElementById(objidParent);
Child = document.getElementById(objidChild);
Grandchild = document.getElementById(objidGrandchild);

Parent.style.height = Child.offsetHeight + 'px';
Grandchild.style.display = 'block';

return true
}
  }