function popup(mylink, windowname) 
{ 
if (! window.focus)return true; 
var href; 
if (typeof(mylink) == 'string') 
    href=mylink; 
else 
    href=mylink.href; 
window.open(href, windowname, 'width=300,height=105,scrollbars=no,location=no'); 
return false; 
}