[PHP] paste values for one pop-up. And this pop-up is one frame

[Andre]

Hello

Someone now how to paste values for one pop-up. And this pop-up is one frame
I am doing like this to open pop-up

echo"<a href=\"#\" class=\"textblack\"
onclick=\"NewWindow('fact_imprime.php?factura_id=$factura_id','Ficha','700',
'300','no','left');return false\" onfocus=\"this.blur()\">
                        <img src=\"images/imprime.gif\" width=\"31\"
height=\"31\" border =\"0\"></a>";

And in the pop-up I do like this.
echo"$_REQUEST[factura_id]";

Thanks for the help...