function html_for_add_icon ( $date=0,$hour="", $minute="", $user="" ) {
global $TZ_OFFSET;
if ( ! empty ( $hour ) )
$hour += $TZ_OFFSET;
return "<A HREF="edit_entry.php?" . $u_url .
"date=$date" . ( $hour > 0 ? "&hour=$hour" : "" ) .
( $minute > 0 ? "&minute=$minute" : "" ) .
( empty ( $user ) ? "" : "&defusers=$user" ) .
""><IMG SRC="new.gif" WIDTH="10" HEIGHT="10" ALT="" .
translate("New Entry") . "" BORDER="0" ALIGN="right">" . "</A>";
}

io ho optato per questa soluzione ma il problema è che non passa le variabili:

function html_for_add_icon ( $date=0,$hour="", $minute="", $user="" ) {
global $TZ_OFFSET;
if ( ! empty ( $hour ) )
$hour += $TZ_OFFSET;
return "<A HREF=""

onClick=\"var popup = window.open('edit_entry copia.php?', '', 'width=600,height=600,left=100,top=100,menubar,toolbar,scrollbars=yes');\">

<IMG SRC=\"new.gif\" WIDTH=\"10\" HEIGHT=\"10\" ALT=\"" .
translate("New Entry") . "\" BORDER=\"0\" ALIGN=\"right\">" .  "</A>";

}

grazie anticipatamente!!!!