function popup(link, windowname)
{
if (! window.focus)return true;
var href;
if (typeof(link) == 'string')
   href=link;
else
   href=link.href;
window.open(href, windowname, 'width=480,height=370,scrollbars=yes');
return false;
}

function popup2(link, windowname)
{
if (! window.focus)return true;
var href;
if (typeof(link) == 'string')
   href=link;
else
   href=link.href;
window.open(href, windowname, 'width=740,height=560,scrollbars=no,margin=0,screenX=50,screenY=50');
return false;
}