function ojopc_show_aux(parent, child){
  var p = document.getElementById(parent);
  var c = document.getElementById(child);
  var top  = (c["obj_position"] == "y") ? p.offsetHeight+0 : 0; // setheight
  var left = (c["obj_position"] == "x") ? p.offsetWidth +0 : -31;
  for (; p; p = p.offsetParent){
    top  += p.offsetTop;
    left += p.offsetLeft;
  }
  c.style.position   = "absolute";
  c.style.top        = top +'px';
  c.style.left       = left+'px';
  c.style.visibility = "visible";
}
function ojopc_show(){
  var p = document.getElementById(this["link_rollover"]);
  var c = document.getElementById(this["win_atshow" ]);
  ojopc_show_aux(p.id, c.id);
  clearTimeout(c["realtimeout"]);
}
function ojopc_hide(){
  var c = document.getElementById(this["win_atshow"]);
  c["realtimeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 50); // speedmenu
}
function ojopc_attach(parent, child, showtype, position, cursor){
  var p = document.getElementById(parent);
  var c = document.getElementById(child);
  p["link_rollover"]     = p.id;
  c["link_rollover"]     = p.id;
  p["win_atshow"]      = c.id;
  c["win_atshow"]      = c.id;
  p["obj_position"]   = position;
  c["obj_position"]   = position;
  c.style.position   = "absolute";
  c.style.visibility = "hidden";
  if (cursor != undefined) p.style.cursor = cursor;
  switch (showtype) {
    case "click":
      p.onclick     = at_click;
      p.onmouseout  = ojopc_hide;
      c.onmouseover = ojopc_show;
      c.onmouseout  = ojopc_hide;
      break;
    case "hover":
      p.onmouseover = ojopc_show;
      p.onmouseout  = ojopc_hide;
      c.onmouseover = ojopc_show;
      c.onmouseout  = ojopc_hide;
      break;
  }
}