Loading dynamic external form with jquery

I hope someone could help me.

When i load an external php that generates a set of fields, i have no problems, but then i send the generated form, i can not access the vars.

There is the code i user:

For load the external file:

      $.ajax({

    type: "POST",
    url: "product-insert.php",
    contentType: "application/x-www-form-urlencoded",
    global: true,
    processData:true,
    dataType: 'html',
    data: {num_filas: $("#num_filas").val()},

    success: function(html){
             $("#destino").html(html);
             alert(html);
             str = $("ofertas").serialize();
    },

    error: function(){
    },

    complete: function(){
    }
});


  <form action="ofertas.php开发者_运维技巧" method="post" enctype="multipart/form-data" name="form-ofertas" id="ofertas" >

  <div id="destino"></div>

The file loaded have this code:

echo '<input name="campo" type="hidden" value="valor" />';

and the php file that receive the form have this code:

die("campo: ".$_REQUEST['campo']);

I really will appreciate a lot the help.

Thnx in advance.

Yannick

Based upon your comment, you're checking for $_POST['campo'] despite the fact that your <form> tag's method is a GET request. You should instead check the value of $_GET['campo'] (or $_REQUEST['campo']).

I'm guessing partially off comments here, your form looks like this:

<form action="ofertas.php" method="get" enctype="multipart/form-data" 
 name="form-ofertas" id="ofertas"> 
  <div id="destino"></div> 
</form> 

Your method is GET, which won't give you what you're after if you're looking for the values in the POST collection, which $_POST does. Just change the method on your form to method="post" to get this working correctly, otherwise use $_GET on the PHP side, if a GET is what you're actually after.

For a good discussion of GET vs POST, take a look here:
When do you use POST and when do you use GET?