Question

I need the value from a loop witch is $row->value, then when I click on button_click(href) a DIV popup will show and ask for another value that is idnumber.
At the popup a submit button will direct to next_page.php

I want both value from loop $row->value and at popup value=idnumber send to next_page.php

<div id="show_popup"(hide/show popup)>
 <form action="next_page.php" method="GET or POST">
  <input name="idnumber" type="text" value="">
  <input type="submit" value="button">
 </form>
</div>

<?php 
 foreach($foo as $row){
 echo "
 <tr>
   <td>".$row->value."</td>
   <td><a class='button' href='#' onlick='(popup DIV)'>button_click</a></td>
 </tr>";
 }
?>

Is this possible?

$(function() {
   function launch() {
   $('#show_popup').lightbox_me({centered: true, onLoad: function() { $('#add-new-popup').find('input:first').focus()}});}
   $('.button').click(function(e) {
   $("#show_popup").lightbox_me({centered: true, onLoad: function() {
$("#show_popup").find("input:first").focus();}});e.preventDefault();
            });
        }); 

Answer 1

Add this to your click handler:

$('.button').click(function(e) {
    var rowValue = $(this).closest('td').prev().text();
    $("#show_popup").lightbox_me({centered: true, onLoad: function() {
        $("#show_popup").find("input:first").focus();
        $("#show_popup form").prepend($('<input type="hidden" name="rowName" value="' + rowValue + '" />'));
    }
});