function at_show_aux(parent, child)
{
var p = document.getElementById(parent);
var c = document.getElementById(child );
var top= (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
var left = (c["at_position"] == "x") ? c.offsetWidth -(c.offsetWidth + c.offsetWidth) : 0;
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 at_show()
{
var p = document.getElementById(this["at_parent"]);
var c = document.getElementById(this["at_child" ]);
at_show_aux(p.id, c.id);
clearTimeout(c["at_timeout"]);
}
function at_hide()
{
var p = document.getElementById(this["at_parent"]);
var c = document.getElementById(this["at_child" ]);
c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 333);
}
function at_click()
{
var p = document.getElementById(this["at_parent"]);
var c = document.getElementById(this["at_child" ]);

if (c.style.visibility != "visible") at_show_aux(p.id, c.id); else c.style.visibility = "hidden";
return false;
}
function at_attach(parent, child, showtype, position, cursor)
{
var p = document.getElementById(parent);
var c = document.getElementById(child);
p["at_parent"] = p.id;
c["at_parent"] = p.id;
p["at_child"]= c.id;
c["at_child"]= c.id;
p["at_position"] = position;
c["at_position"] = position;
c.style.position = "absolute";
c.style.visibility = "hidden";
if (cursor != undefined) p.style.cursor = cursor;
switch (showtype)
{
case "click":
p.onmouseover = at_click;
p.onmouseout= at_hide;
c.onmouseover = at_show;
c.onmouseout= at_hide;
break;
case "hover":
p.onmouseover = at_show;
p.onmouseout= at_hide;
c.onmouseover = at_show;
c.onmouseout= at_hide;
break;
}
}