function expander(id)
{
var obj = "patentextent_" + id;
var obj2= "indexExtent_"  + id;
var el = document.getElementById(obj);
var el2= document.getElementById(obj2);
if(el.style.display != "block")
{
el.style.display = "block";
el2.style.display = "block";
}
else
{
el.style.display = "none";
el2.style.display = "none";
}
}