var newwindow = '';
var w    = '440';
var h    = '440';
var winl = (screen.width - w) / 2;
var wint = '75';
function sesam(url)
{
if (newwindow.location && !newwindow.closed)
{newwindow.location.href = url;}
else
{newwindow=window.open(url,'info','height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=1');}
if (window.focus) {newwindow.focus()}
}