function popup(mylink, windowname, w, h)
{
if (! window.focus)return true;
var href; 
var paramstr = 'width=' + w + ',height=' + h;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;
window.open(href, windowname, paramstr + ',scrollbars=yes');
return false;
}// JavaScript Document