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")? p.offsetWidth+2 : 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'",100)}
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.onclick=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}}