function getposOffset(overlay, offsettype){
var totaloffset=(offsettype=="left")? overlay.offsetLeft : overlay.offsetTop;
var parentEl=overlay.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}
function overlay(curobj, subobj){
if (document.getElementById){
var subobj=document.getElementById(subobj)
subobj.style.left=(getposOffset(curobj, "left")-200)+"px"
subobj.style.top=(getposOffset(curobj, "top")-195)+"px"
subobj.style.display="block"
return false
}
else
return true
}
function overlayclose(subobj){
document.getElementById(subobj).style.display="none"
}